Noun & Pronoun Errors
Pronouns must agree with the noun they replace in number and person, and be in the right case. 'Each', 'everyone', 'neither' are singular. Some nouns are always plural (scissors) or always singular/uncountable (information, furniture, advice).
The five-point scan
Don't read for "what sounds wrong" — test each underlined part against this fixed checklist, in order:
| Check | Rule |
|---|---|
| Subject–verb | singular subject → singular verb |
| Tense | match the time marker (since/for, yesterday) |
| Pronoun | agrees with its noun; right case (me vs I) |
| Preposition | fixed pairs (good AT, married TO) |
| Article | a/an by sound; "the" for specific/unique |
✅ Solved examples
✏️ Practice — try these, take hints as needed
📝 Topic test — 8 questions
Auto-graded with full solutions; saved to your dashboard. Use the calculator and formula sheet (top-right) any time.
Formula Reference Sheet
Checklist for each part
| Subject–verb | singular subject → singular verb |
|---|---|
| Tense | time markers must match the verb form |
| Pronoun | must agree with its noun in number/person |
| Preposition | fixed combinations (good AT, married TO) |
| Article | a/an by sound; "the" for specific |