Click on one of the topics below or select from the list:
- Finding Nouns, Verbs, and Subjects
- Subject-Verb Agreement
- Clauses and Phrases
- Who vs. Whom
- Whoever vs. Whomever
- Who, That, Which
- Adjectives and Adverbs
- Effective Writing
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Note: Some English usage rules vary among authorities. For example, the Associated Press (AP) Stylebook is a guide specific for news media and journalists while The Chicago Manual of Style (CMS) is used by many book publishers and writers. The Blue Book of Grammar and Punctuation leans towards usage rules in CMS along with other authoritative texts and does not attempt to conform to the AP Stylebook, which differs significantly in some aspects.