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10 Common Grammar Mistakes That Make You Look Unprofessional

March 19, 202612 Mins read6 Views

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Good evening

Never allow a person to tell you no who doesn't have the power to say yes.
— Eleanor Roosevelt

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Table of Contents

Mistake 1: Your vs. You're
Mistake 2: Its vs. It's
Mistake 3: There vs. Their vs. They're
Mistake 4: Subject-Verb Agreement
Mistake 5: Then vs. Than
Mistake 6: Affect vs. Effect
Mistake 7: Me vs. I
Mistake 8: Fewer vs. Less
Mistake 9: Who vs. Whom
Mistake 10: Double Negatives
Quick Reference Summary Table
Bonus: 5 More Common Professional Writing Mistakes
- 1. There is/are with plural subjects
- 2. Using "myself" instead of "me"
- 3. Alot vs. A lot
- 4. Could of / Would of / Should of
- 5. Loose vs. Lose
The Bottom Line

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Grammar mistakes can ruin your credibility. A small error in an email, presentation, or report can make you look careless—even if your ideas are brilliant. The good news? Most common mistakes are easy to fix once you know them.

Let’s dive into the 10 most common grammar mistakes that scream “unprofessional”—with 20 examples for each in both English and Hindi.

Mistake 1: Your vs. You’re

The Rule:

Your = Possessive (तुम्हारा/तुम्हारी)
You’re = You are (तुम हो)

This is the #1 mistake in professional writing. Mixing these up makes you look instantly careless.

	Incorrect	Correct	Hindi Translation (Correct)
1	Your going to love this presentation.	You’re going to love this presentation.	तुम इस प्रेजेंटेशन को पसंद करने वाले हो।
2	I value you’re opinion.	I value your opinion.	मैं तुम्हारी राय को महत्व देता हूं।
3	Is this you’re bag?	Is this your bag?	क्या यह तुम्हारा बैग है?
4	Your the best candidate for the job.	You’re the best candidate for the job.	तुम इस नौकरी के लिए सबसे अच्छे उम्मीदवार हो।
5	Please submit you’re report by Friday.	Please submit your report by Friday.	कृपया अपनी रिपोर्ट शुक्रवार तक जमा करें।
6	I hope your feeling better today.	I hope you’re feeling better today.	मुझे उम्मीद है कि तुम आज बेहतर महसूस कर रहे हो।
7	Your work is impressive.	Your work is impressive. (Correct already)	तुम्हारा काम प्रभावशाली है।
8	I think your making a mistake.	I think you’re making a mistake.	मुझे लगता है तुम गलती कर रहे हो।
9	When will you’re meeting start?	When will your meeting start?	तुम्हारी मीटिंग कब शुरू होगी?
10	Your exactly right about this.	You’re exactly right about this.	तुम इस बारे में बिल्कुल सही हो।
11	I love you’re new haircut.	I love your new haircut.	मुझे तुम्हारा नया हेयरकट पसंद है।
12	If your free, let’s discuss this.	If you’re free, let’s discuss this.	अगर तुम फ्री हो, तो चलो इस पर चर्चा करते हैं।
13	Your presence is requested.	Your presence is requested. (Correct)	आपकी उपस्थिति का अनुरोध है।
14	I heard your leaving the company.	I heard you’re leaving the company.	मैंने सुना तुम कंपनी छोड़ रहे हो।
15	What’s you’re email address?	What’s your email address?	तुम्हारा ईमेल पता क्या है?
16	Your going to achieve great things.	You’re going to achieve great things.	तुम महान चीजें हासिल करने वाले हो।
17	This is you’re responsibility now.	This is your responsibility now.	यह अब तुम्हारी जिम्मेदारी है।
18	I appreciate you’re honesty.	I appreciate your honesty.	मैं तुम्हारी ईमानदारी की सराहना करता हूं।
19	Your late for the meeting again.	You’re late for the meeting again.	तुम मीटिंग के लिए फिर से देर से आए हो।
20	Your the only one who can help.	You’re the only one who can help.	तुम ही वह एकमात्र हो जो मदद कर सकता है।

Mistake 2: Its vs. It’s

The Rule:

Its = Possessive (उसका/उसकी – निर्जीव या जानवर के लिए)
It’s = It is / It has (यह है)

This is confusing because normally we use apostrophe for possession. But its is an exception—like his, hers, theirs.

	Incorrect	Correct	Hindi Translation (Correct)
1	The company released it’s annual report.	The company released its annual report.	कंपनी ने अपनी वार्षिक रिपोर्ट जारी की।
2	Its raining outside.	It’s raining outside.	बाहर बारिश हो रही है।
3	The dog wagged it’s tail.	The dog wagged its tail.	कुत्ते ने अपनी पूंछ हिलाई।
4	Its a beautiful day.	It’s a beautiful day.	यह एक सुंदर दिन है।
5	Every company has it’s own culture.	Every company has its own culture.	हर कंपनी की अपनी संस्कृति होती है।
6	I think its time to leave.	I think it’s time to leave.	मुझे लगता है अब जाने का समय है।
7	The phone lost it’s charge.	The phone lost its charge.	फोन की बैटरी खत्म हो गई।
8	Its been a long day.	It’s been a long day.	यह एक लंबा दिन रहा है।
9	The project has it’s challenges.	The project has its challenges.	प्रोजेक्ट की अपनी चुनौतियां हैं।
10	Its important to be on time.	It’s important to be on time.	समय पर होना महत्वपूर्ण है।
11	The car needs it’s oil changed.	The car needs its oil changed.	कार का तेल बदलने की जरूरत है।
12	I wonder what its doing there.	I wonder what it’s doing there.	मुझे आश्चर्य है कि यह वहाँ क्या कर रहा है।
13	The organization changed it’s name.	The organization changed its name.	संगठन ने अपना नाम बदल दिया।
14	Its not what I expected.	It’s not what I expected.	यह वैसा नहीं है जैसा मैंने उम्मीद की थी।
15	The laptop and it’s charger are here.	The laptop and its charger are here.	लैपटॉप और उसका चार्जर यहाँ हैं।
16	Its going to be okay.	It’s going to be okay.	सब ठीक होने वाला है।
17	The committee shared it’s decision.	The committee shared its decision.	समिति ने अपना निर्णय साझा किया।
18	I hope its not too late.	I hope it’s not too late.	मुझे उम्मीद है कि बहुत देर नहीं हुई है।
19	The tree lost it’s leaves.	The tree lost its leaves.	पेड़ ने अपने पत्ते खो दिए।
20	Its a pleasure to meet you.	It’s a pleasure to meet you.	आपसे मिलकर खुशी हुई।

Mistake 3: There vs. Their vs. They’re

The Rule:

There = Place or existence (वहाँ / वहां पर)
Their = Possessive (उनका/उनकी)
They’re = They are (वे हैं)

This trio causes endless confusion. Professional writing demands getting this right.

	Incorrect	Correct	Hindi Translation (Correct)
1	Their going to the office.	They’re going to the office.	वे ऑफिस जा रहे हैं।
2	I left my bag over their.	I left my bag over there.	मैंने अपना बैग वहाँ छोड़ दिया।
3	They’re car is parked outside.	Their car is parked outside.	उनकी कार बाहर पार्क है।
4	There coming to the meeting.	They’re coming to the meeting.	वे मीटिंग में आ रहे हैं।
5	I know there address.	I know their address.	मैं उनका पता जानता हूं।
6	The books are over their.	The books are over there.	किताबें वहाँ पर हैं।
7	Their happy with the results.	They’re happy with the results.	वे परिणामों से खुश हैं।
8	There house is beautiful.	Their house is beautiful.	उनका घर सुंदर है।
9	Do you know if there coming?	Do you know if they’re coming?	क्या तुम जानते हो कि वे आ रहे हैं?
10	The team submitted there report.	The team submitted their report.	टीम ने अपनी रिपोर्ट जमा की।
11	There are many options available.	There are many options available. (Correct)	वहाँ कई विकल्प उपलब्ध हैं।
12	Their is a problem with this.	There is a problem with this.	इसमें एक समस्या है।
13	They’re luggage is lost.	Their luggage is lost.	उनका सामान खो गया है।
14	I’ll meet you their.	I’ll meet you there.	मैं तुमसे वहाँ मिलूंगा।
15	The employees submitted they’re feedback.	The employees submitted their feedback.	कर्मचारियों ने अपना फीडबैक जमा किया।
16	There not interested in the deal.	They’re not interested in the deal.	वे सौदे में रुचि नहीं रखते।
17	Their is no time to waste.	There is no time to waste.	बर्बाद करने के लिए समय नहीं है।
18	The children love they’re new school.	The children love their new school.	बच्चों को अपना नया स्कूल पसंद है।
19	Please put the files over their.	Please put the files over there.	कृपया फाइलें वहाँ रख दें।
20	They’re responsibilities are clear.	Their responsibilities are clear.	उनकी जिम्मेदारियां स्पष्ट हैं।

Mistake 4: Subject-Verb Agreement

The Rule:

Singular subject → Singular verb (He runs)
Plural subject → Plural verb (They run)

This is especially tricky with collective nouns and when words come between subject and verb.

	Incorrect	Correct	Hindi Translation (Correct)
1	The team are meeting today.	The team is meeting today.	टीम आज मीटिंग कर रही है।
2	She don’t like this idea.	She doesn’t like this idea.	उसे यह विचार पसंद नहीं है।
3	The list of items are on the table.	The list of items is on the table.	वस्तुओं की सूची मेज पर है।
4	Everyone have their own opinion.	Everyone has their own opinion.	हर किसी की अपनी राय है।
5	The group of students is waiting.	The group of students is waiting. (Correct)	छात्रों का समूह इंतजार कर रहा है।
6	Neither of the options are good.	Neither of the options is good.	दोनों में से कोई भी विकल्प अच्छा नहीं है।
7	The data shows a trend.	The data show a trend. (Data is plural)	डेटा एक प्रवृत्ति दिखाते हैं।
8	He go to the gym every day.	He goes to the gym every day.	वह हर दिन जिम जाता है।
9	The committee have decided.	The committee has decided.	समिति ने फैसला कर लिया है।
10	Each of the employees are qualified.	Each of the employees is qualified.	प्रत्येक कर्मचारी योग्य है।
11	The news are shocking.	The news is shocking.	समाचार चौंकाने वाला है।
12	There’s many reasons to celebrate.	There are many reasons to celebrate.	जश्न मनाने के कई कारण हैं।
13	The series of lectures start tomorrow.	The series of lectures starts tomorrow.	व्याख्यानों की श्रृंखला कल शुरू होती है।
14	She walk to work every day.	She walks to work every day.	वह हर दिन पैदल काम पर जाती है।
15	The criteria for selection is strict.	The criteria for selection are strict.	चयन के मानदंड सख्त हैं।
16	One of my friends live in Delhi.	One of my friends lives in Delhi.	मेरे दोस्तों में से एक दिल्ली में रहता है।
17	The number of applicants are increasing.	The number of applicants is increasing.	आवेदकों की संख्या बढ़ रही है।
18	Neither the manager nor the employees knows.	Neither the manager nor the employees know.	न तो मैनेजर जानता है और न ही कर्मचारी।
19	The audience was clapping.	The audience was clapping. (Correct – singular)	दर्शक ताली बजा रहे थे।
20	Mathematics are my favorite subject.	Mathematics is my favorite subject.	गणित मेरा पसंदीदा विषय है।

Mistake 5: Then vs. Than

The Rule:

Then = Time or sequence (तब / फिर)
Than = Comparison (से / की तुलना में)

	Incorrect	Correct	Hindi Translation (Correct)
1	She is taller then me.	She is taller than me.	वह मुझसे लंबी है।
2	First we’ll eat, than we’ll leave.	First we’ll eat, then we’ll leave.	पहले हम खाएंगे, फिर हम निकलेंगे।
3	I’d rather work from home then office.	I’d rather work from home than office.	मैं ऑफिस की बजाय घर से काम करना पसंद करूंगा।
4	He was happier then ever.	He was happier than ever.	वह पहले से कहीं ज्यादा खुश था।
5	If you finish early, than call me.	If you finish early, then call me.	अगर तुम जल्दी खत्म करो, तो मुझे फोन करो।
6	This is more expensive then that.	This is more expensive than that.	यह उससे ज्यादा महंगा है।
7	I’ll see you than.	I’ll see you then.	मैं तुमसे तब मिलूंगा।
8	Better late then never.	Better late than never.	देर आएदुरुस्त आए। (कहावत)
9	She earns more then him.	She earns more than him.	वह उससे ज्यादा कमाती है।
10	We were younger then.	We were younger then. (Correct – time)	हम तब छोटे थे।
11	I like tea more then coffee.	I like tea more than coffee.	मुझे कॉफी से ज्यादा चाय पसंद है।
12	First we’ll discuss, than decide.	First we’ll discuss, then decide.	पहले हम चर्चा करेंगे, फिर फैसला करेंगे।
13	He’s smarter then he looks.	He’s smarter than he looks.	वह जितना दिखता है उससे ज्यादा स्मार्ट है।
14	The project is easier then I thought.	The project is easier than I thought.	प्रोजेक्ट मेरे विचार से आसान है।
15	If that’s the case, than I agree.	If that’s the case, then I agree.	अगर ऐसा है, तो मैं सहमत हूं।
16	She has more experience then him.	She has more experience than him.	उसके पास उससे ज्यादा अनुभव है।
17	I was living in Mumbai back then.	I was living in Mumbai back then. (Correct)	मैं तब मुंबई में रह रहा था।
18	This is worse then I expected.	This is worse than I expected.	यह मेरी उम्मीद से भी बदतर है।
19	We’ll meet at 5, than go together.	We’ll meet at 5, then go together.	हम 5 बजे मिलेंगे, फिर साथ जाएंगे।
20	He’s no different then the others.	He’s no different than the others.	वह दूसरों से अलग नहीं है।

Mistake 6: Affect vs. Effect

The Rule:

Affect = Verb (to influence) – प्रभावित करना
Effect = Noun (the result) – प्रभाव / परिणाम

	Incorrect	Correct	Hindi Translation (Correct)
1	The new policy will effect sales.	The new policy will affect sales.	नई नीति बिक्री को प्रभावित करेगी।
2	The medicine had no affect.	The medicine had no effect.	दवा का कोई प्रभाव नहीं हुआ।
3	How will this effect our team?	How will this affect our team?	यह हमारी टीम को कैसे प्रभावित करेगा?
4	The affect of the change was immediate.	The effect of the change was immediate.	बदलाव का प्रभाव तत्काल था।
5	Weather affects my mood.	Weather affects my mood. (Correct)	मौसम मेरे मूड को प्रभावित करता है।
6	What is the affect of this decision?	What is the effect of this decision?	इस फैसले का क्या प्रभाव है?
7	The new CEO will effect major changes.	The new CEO will effect major changes. (Effect as verb = bring about)	नए सीईओ बड़े बदलाव लाएंगे। (यहाँ effect सही है)
8	Don’t let it effect your performance.	Don’t let it affect your performance.	इसे अपने प्रदर्शन को प्रभावित न करने दें।
9	The special effects were amazing.	The special effects were amazing. (Correct)	विशेष प्रभाव अद्भुत थे।
10	How does stress affect health?	How does stress affect health? (Correct)	तनाव स्वास्थ्य को कैसे प्रभावित करता है?
11	The affect of the speech was powerful.	The effect of the speech was powerful.	भाषण का प्रभाव शक्तिशाली था।
12	This won’t effect my decision.	This won’t affect my decision.	यह मेरे फैसले को प्रभावित नहीं करेगा।
13	The new law takes affect next month.	The new law takes effect next month.	नया कानून अगले महीने प्रभावी होगा।
14	His words affected me deeply.	His words affected me deeply. (Correct)	उसके शब्दों ने मुझे गहराई से प्रभावित किया।
15	What effect will this have?	What effect will this have? (Correct)	इसका क्या प्रभाव होगा?
16	The weather effected our plans.	The weather affected our plans.	मौसम ने हमारी योजनाओं को प्रभावित किया।
17	The side effects are mild.	The side effects are mild. (Correct)	दुष्प्रभाव हल्के हैं।
18	This will effect everyone.	This will affect everyone.	यह सभी को प्रभावित करेगा।
19	The affect was immediate.	The effect was immediate.	प्रभाव तत्काल था।
20	How will this affect our timeline?	How will this affect our timeline? (Correct)	यह हमारी समयसीमा को कैसे प्रभावित करेगा?

Mistake 7: Me vs. I

The Rule:

I = Subject (कर्ता) – the one doing the action
Me = Object (कर्म) – the one receiving the action

Quick Trick: Remove the other person and see what sounds right.

	Incorrect	Correct	Hindi Translation (Correct)
1	Me and my team will handle it.	My team and I will handle it.	मेरी टीम और मैं इसे संभालेंगे।
2	Please contact John or I.	Please contact John or me.	कृपया जॉन या मुझसे संपर्क करें।
3	Between you and I, this is a secret.	Between you and me, this is a secret.	तुम्हारे और मेरे बीच, यह एक रहस्य है।
4	Me and her are friends.	She and I are friends.	वह और मैं दोस्त हैं।
5	The manager spoke to my colleague and I.	The manager spoke to my colleague and me.	मैनेजर ने मेरे सहकर्मी और मुझसे बात की।
6	Me and my brother work together.	My brother and I work together.	मेरा भाई और मैं साथ काम करते हैं।
7	Can you help my wife and I?	Can you help my wife and me?	क्या आप मेरी पत्नी और मेरी मदद कर सकते हैं?
8	Him and me are partners.	He and I are partners.	वह और मैं साझेदार हैं।
9	The gift is for my friend and I.	The gift is for my friend and me.	उपहार मेरे दोस्त और मेरे लिए है।
10	Me and the team discussed it.	The team and I discussed it.	टीम और मैंने इस पर चर्चा की।
11	She is taller than me.	She is taller than I. (Formal) / She is taller than me. (Informal)	वह मुझसे लंबी है।
12	You and me should collaborate.	You and I should collaborate.	तुम्हें और मुझे सहयोग करना चाहिए।
13	The report was written by my boss and I.	The report was written by my boss and me.	रिपोर्ट मेरे बॉस और मेरे द्वारा लिखी गई थी।
14	Me and her are going to the conference.	She and I are going to the conference.	वह और मैं सम्मेलन में जा रहे हैं।
15	Please join my colleague and I for lunch.	Please join my colleague and me for lunch.	कृपया मेरे सहकर्मी और मेरे साथ दोपहर के भोजन पर आएं।
16	It was me who called.	It was I who called. (Formal) / It was me. (Informal)	यह मैं था जिसने फोन किया।
17	Me and the client agreed.	The client and I agreed.	ग्राहक और मैं सहमत हुए।
18	No one except me knows.	No one except me knows. (Correct)	मेरे अलावा कोई नहीं जानता।
19	Let’s keep this between you and I.	Let’s keep this between you and me.	इसे तुम्हारे और मेरे बीच रखें।
20	Me and my dad work in the same office.	My dad and I work in the same office.	मेरे पिताजी और मैं एक ही ऑफिस में काम करते हैं।

Mistake 8: Fewer vs. Less

The Rule:

Fewer = Things you can count (गिनती योग्य) – fewer books, fewer people
Less = Things you can’t count (अगणनीय) – less water, less time

	Incorrect	Correct	Hindi Translation (Correct)
1	There are less people today.	There are fewer people today.	आज कम लोग हैं।
2	I need less books for this course.	I need fewer books for this course.	मुझे इस कोर्स के लिए कम किताबें चाहिए।
3	We have less than 10 items left.	We have fewer than 10 items left.	हमारे पास 10 से कम वस्तुएं बची हैं।
4	Please use less words in your email.	Please use fewer words in your email.	कृपया अपने ईमेल में कम शब्दों का प्रयोग करें।
5	I have less money than before.	I have less money than before. (Correct – money uncountable)	मेरे पास पहले से कम पैसे हैं।
6	There were less candidates this year.	There were fewer candidates this year.	इस साल कम उम्मीदवार थे।
7	She has less friends than me.	She has fewer friends than me.	उसके मुझसे कम दोस्त हैं।
8	I need less sugar in my tea.	I need less sugar in my tea. (Correct – sugar uncountable)	मुझे अपनी चाय में कम चीनी चाहिए।
9	The express lane is for 10 items or less.	The express lane is for 10 items or fewer.	एक्सप्रेस लेन 10 या उससे कम वस्तुओं के लिए है।
10	We received less applications this time.	We received fewer applications this time.	इस बार हमें कम आवेदन मिले।
11	There is less traffic today.	There is less traffic today. (Correct – traffic uncountable)	आज कम ट्रैफिक है।
12	He made less mistakes in his report.	He made fewer mistakes in his report.	उसने अपनी रिपोर्ट में कम गलतियाँ कीं।
13	I have less than 5 rupees.	I have fewer than 5 rupees. (Rupees countable)	मेरे पास 5 रुपये से कम हैं।
14	We need less meetings and more action.	We need fewer meetings and more action.	हमें कम मीटिंग और अधिक कार्रवाई चाहिए।
15	She spent less time on the project.	She spent less time on the project. (Correct – time uncountable)	उसने प्रोजेक्ट पर कम समय बिताया।
16	There were less errors in the new version.	There were fewer errors in the new version.	नए संस्करण में कम त्रुटियां थीं।
17	I drink less coffee than before.	I drink less coffee than before. (Correct – coffee uncountable)	मैं पहले से कम कॉफी पीता हूं।
18	We have less employees this year.	We have fewer employees this year.	इस साल हमारे पास कम कर्मचारी हैं।
19	There is less noise in the morning.	There is less noise in the morning. (Correct – noise uncountable)	सुबह में कम शोर होता है।
20	She ate less cookies than him.	She ate fewer cookies than him.	उसने उससे कम कुकीज़ खाईं।

Mistake 9: Who vs. Whom

The Rule:

Who = Subject (कर्ता) – the one doing the action
Whom = Object (कर्म) – the one receiving the action

Quick Trick: If you can answer with “he/she/they” → use who. If you can answer with “him/her/them” → use whom.

	Incorrect	Correct	Hindi Translation (Correct)
1	Who did you meet?	Whom did you meet?	तुम किससे मिले?
2	The man whom is standing there is my boss.	The man who is standing there is my boss.	वह आदमी जो वहाँ खड़ा है, मेरा बॉस है।
3	Whom is coming to the party?	Who is coming to the party?	पार्टी में कौन आ रहा है?
4	She is the person who I trust.	She is the person whom I trust.	वह वह व्यक्ति है जिस पर मैं भरोसा करता हूं।
5	Who should I contact?	Whom should I contact?	मुझे किससे संपर्क करना चाहिए?
6	The candidate who we hired is excellent.	The candidate whom we hired is excellent.	उम्मीदवार जिसे हमने काम पर रखा है, उत्कृष्ट है।
7	Do you know who wrote this?	Do you know who wrote this? (Correct – subject)	क्या तुम जानते हो यह किसने लिखा?
8	He is the one who I gave the book to.	He is the one to whom I gave the book. / He is the one who I gave the book to. (Informal)	वह वही है जिसे मैंने किताब दी थी।
9	Whom called you?	Who called you?	तुम्हें किसने फोन किया?
10	The woman whom lives next door is a doctor.	The woman who lives next door is a doctor.	वह महिला जो बगल में रहती है, डॉक्टर है।
11	With who are you going?	With whom are you going?	तुम किसके साथ जा रहे हो?
12	She is the consultant who we hired.	She is the consultant whom we hired.	वह वह सलाहकार है जिसे हमने काम पर रखा था।
13	Who do you work for?	Whom do you work for?	तुम किसके लिए काम करते हो?
14	The artist who paintings are famous is here.	The artist whose paintings are famous is here.	वह कलाकार जिसकी पेंटिंग प्रसिद्ध हैं, यहाँ है। (यहाँ whose सही है)
15	I don’t know whom did it.	I don’t know who did it.	मैं नहीं जानता यह किसने किया।
16	The people who we met were friendly.	The people whom we met were friendly.	जिन लोगों से हम मिले वे मिलनसार थे।
17	Who is this gift for?	Whom is this gift for?	यह उपहार किसके लिए है?
18	The boy whom won the race is my friend.	The boy who won the race is my friend.	वह लड़का जिसने दौड़ जीती, मेरा दोस्त है।
19	To who should I address this?	To whom should I address this?	मैं यह किसको संबोधित करूं?
20	She is someone who I admire greatly.	She is someone whom I admire greatly.	वह कोई है जिसकी मैं बहुत प्रशंसा करता हूं।

Mistake 10: Double Negatives

The Rule: In English, two negatives make a positive. Avoid using two negative words together.

❌ I don’t know nothing. → I don’t know anything. OR I know nothing.
❌ I can’t find my keys nowhere. → I can’t find my keys anywhere.

	Incorrect	Correct	Hindi Translation (Correct)
1	I don’t know nothing about it.	I don’t know anything about it.	मुझे इसके बारे में कुछ नहीं पता।
2	She didn’t see nobody at the office.	She didn’t see anybody at the office.	उसने ऑफिस में किसी को नहीं देखा।
3	We haven’t got no time to waste.	We haven’t got any time to waste.	हमारे पास बर्बाद करने के लिए कोई समय नहीं है।
4	He can’t find his keys nowhere.	He can’t find his keys anywhere.	उसे अपनी चाबियां कहीं नहीं मिल रही हैं।
5	I don’t want no trouble.	I don’t want any trouble.	मुझे कोई परेशानी नहीं चाहिए।
6	She never says nothing nice.	She never says anything nice.	वह कभी कुछ अच्छा नहीं कहती।
7	There isn’t no solution to this.	There isn’t any solution to this.	इसका कोई समाधान नहीं है।
8	He didn’t tell me nothing.	He didn’t tell me anything.	उसने मुझे कुछ नहीं बताया।
9	I can’t get no satisfaction.	I can’t get any satisfaction.	मुझे कोई संतुष्टि नहीं मिल रही।
10	Nobody said nothing about the meeting.	Nobody said anything about the meeting.	मीटिंग के बारे में किसी ने कुछ नहीं कहा।
11	We don’t need no help.	We don’t need any help.	हमें किसी मदद की जरूरत नहीं है।
12	She hasn’t done nothing wrong.	She hasn’t done anything wrong.	उसने कुछ गलत नहीं किया है।
13	I won’t go nowhere tonight.	I won’t go anywhere tonight.	मैं आज रात कहीं नहीं जाऊंगा।
14	There wasn’t no reason to worry.	There wasn’t any reason to worry.	चिंता करने का कोई कारण नहीं था।
15	He doesn’t know nobody in this city.	He doesn’t know anybody in this city.	वह इस शहर में किसी को नहीं जानता।
16	I haven’t seen no one all day.	I haven’t seen anyone all day.	मैंने पूरे दिन किसी को नहीं देखा।
17	She never tells no lies.	She never tells any lies. / She tells no lies.	वह कभी झूठ नहीं बोलती।
18	We can’t find no parking anywhere.	We can’t find any parking anywhere.	हमें कहीं भी पार्किंग नहीं मिल रही।
19	I don’t owe nobody nothing.	I don’t owe anybody anything.	मैं किसी का कुछ नहीं बकाया हूं।
20	There ain’t no way to fix this.	There is no way to fix this. / There isn’t any way to fix this.	इसे ठीक करने का कोई तरीका नहीं है।

Quick Reference Summary Table

	Mistake	Correct Usage	Hindi Concept
1	Your vs. You’re	Your = तुम्हारा; You’re = तुम हो	Possession vs. “You are”
2	Its vs. It’s	Its = उसका; It’s = यह है	Possession (no apostrophe) vs. “It is”
3	There vs. Their vs. They’re	There = वहाँ; Their = उनका; They’re = वे हैं	Place vs. Possession vs. “They are”
4	Subject-Verb Agreement	Singular subject → singular verb	कर्ता के अनुसार क्रिया
5	Then vs. Than	Then = तब; Than = से	Time vs. Comparison
6	Affect vs. Effect	Affect = प्रभावित करना; Effect = प्रभाव	Verb vs. Noun
7	Me vs. I	I = कर्ता; Me = कर्म	Subject vs. Object
8	Fewer vs. Less	Fewer = गिनती योग्य; Less = अगणनीय	Countable vs. Uncountable
9	Who vs. Whom	Who = कर्ता; Whom = कर्म	Subject vs. Object
10	Double Negatives	Avoid two negatives together	दो निषेध शब्द एक साथ नहीं

Bonus: 5 More Common Professional Writing Mistakes

1. There is/are with plural subjects

❌ There is many reasons.
✅ There are many reasons.

2. Using “myself” instead of “me”

❌ Please contact myself.
✅ Please contact me.

3. Alot vs. A lot

❌ I work alot.
✅ I work a lot. (Always two words)

4. Could of / Would of / Should of

❌ I could of helped.
✅ I could have helped.

5. Loose vs. Lose

❌ Don’t loose your keys.
✅ Don’t lose your keys. (Loose = ढीला; Lose = खोना)

The Bottom Line

Grammar mistakes don’t just break rules—they break trust. In professional settings, every error makes your reader question your attention to detail. But here’s the good news: these 10 mistakes cause 80% of all grammar errors. Master these, and you’ll instantly look more professional.

Practice these examples. Read them aloud. Soon, correct grammar will become second nature—and your writing will command the respect it deserves.

Do it or not. There is no try.

Yoda

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Grammar

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Top Insights

10 Common Grammar Mistakes That Make You Look Unprofessional

Mistake 1: Your vs. You’re

Mistake 2: Its vs. It’s

Mistake 3: There vs. Their vs. They’re

Mistake 4: Subject-Verb Agreement

Mistake 5: Then vs. Than

Mistake 6: Affect vs. Effect

Mistake 7: Me vs. I

Mistake 8: Fewer vs. Less

Mistake 9: Who vs. Whom

Mistake 10: Double Negatives

Quick Reference Summary Table

Bonus: 5 More Common Professional Writing Mistakes

1. There is/are with plural subjects

2. Using “myself” instead of “me”

3. Alot vs. A lot

4. Could of / Would of / Should of

5. Loose vs. Lose

The Bottom Line

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