Avoiding Substandard LanguageLanguage, Tone, and Level of FormalityEnglish UsageDangling ModifiersVague References of This, That, and WhichLack of Parallel ConstructionInconsistent Use of Verb TensesChoosing the MoodSeparation of Related Sentence ElementsLack of Subject–Verb AgreementLack of Pronoun AgreementConfusing Adjectives and AdverbsPunctuationThe CommaEnriching VocabularyIdioms and ProverbsForeign Words and PhrasesLatin Words and PhrasesSome English IdiomsPhrasal VerbsSome Common Phrasal VerbsReview Your LearningReflect on Your Learning