Top 50 English Grammar Rules You Must Know

Master these 50 essential English grammar rules and speak with confidence.

Rule 1: Subject-Verb Agreement

The verb must agree with its subject in number. Singular subject → singular verb. Plural subject → plural verb.

✅ She is a doctor. | ✅ They are doctors.

Rule 2: Articles (a, an, the)

Use "a" before consonant sounds, "an" before vowel sounds, "the" for specific nouns.

✅ a cat | ✅ an orange | ✅ the sun

Rule 3: Tense Consistency

Don't switch tenses within the same sentence without reason.

❌ She went to the store and buys milk. | ✅ She went to the store and bought milk.