Prompt Library

Find every who and whom in a text, correct mismatched grammatical roles, and prove each call with the he-or-him substitution test.

Find misused then and than in writing, verify a single sentence, and explain the comparison-versus-sequence test that keeps the two words straight.

Explain whether who's or whose fits a sentence, prove the call with the who-is expansion test, and cover whose for non-person owners like companies.

Find verbs that break a passage's dominant tense, name the anchor tense, and correct inconsistencies while recognizing legitimate shifts like dialogue and flashbacks.

Check writing for subject-verb agreement errors, name the rule that applies, and produce corrected sentences covering intervening phrases and collective nouns.

Find there, their, and they're mistakes in writing, prove each fix with a test, and explain the three-way difference using expansion and ownership tests.