
The articles A, An and key words are highlighted in bold + italic.
🔹 Basic Rule:
🔹 Detailed Rules:
🔹 When to Use A/An:
🔹 When NOT to Use A/An:
Structure: A + noun (consonant sound)
Structure: An + noun (vowel sound)
Structure: There is/are not + a/an + noun OR Subject + do/does + not have + a/an
Structure: Do/Does/Is/Are + subject + have/be + a/an + noun?
Words that begin with vowel letters but have consonant sounds, or consonant letters with vowel sounds.
Common phrases where a/an is used.
✅ Summary: 100+ examples covering all uses of A and An — positive sentences, negative sentences, interrogative sentences, special cases/exceptions, and fixed expressions. All instances of A, An are highlighted in bold + italic