OSAT English study materials
OSAT English study resources

OSAT English: Language Conventions and Linguistics

OSAT English · Work through your exam, one topic at a time.

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Language Conventions and Linguistics

Domain 4: Language Conventions and Linguistics

This domain combines Standard Edited English conventions-grammar, usage, punctuation, capitalization, spelling-with foundational linguistics: phonology, morphology, syntax, semantics, pragmatics, language acquisition, and the history of English. Convention items ask you to identify or correct an error; linguistics items ask you to classify a structure or explain a language phenomenon.

Core rules and concepts

  • Agreement: the verb agrees with the grammatical subject, not an intervening phrase ("The box of letters is"). Indefinite pronouns-each, everyone, neither, either-are singular; both, many, few are plural.
  • Pronoun case: who/whom, I/me. Subject case for subjects and subject complements; object case after prepositions and verbs ("between you and me").
  • Punctuation: a comma splice joins two independent clauses with only a comma; fix it with a period, semicolon, or coordinating conjunction. A colon follows a complete clause to introduce a list or explanation. Restrictive clauses take no commas.
  • Modifiers: a dangling modifier's implied subject must match the main clause's subject.
  • Morphology: free versus bound morphemes; inflectional affixes (tense, plural, comparison) versus derivational affixes (change part of speech).
  • Phonology and semantics: a phoneme is a distinctive sound, an allophone a variant; denotation is literal meaning, connotation the associated meaning.
  • History: Old English (Germanic), Middle English (Norman French influence after 1066), Modern English (Great Vowel Shift, Renaissance borrowing).

Worked example

Sentence: "Walking to the store, the rain soaked my coat."

Reasoning: The introductory participial phrase modifies the nearest available subject, "the rain"-but rain does not walk. Repair by supplying the intended subject: "Walking to the store, I was soaked by the rain." Or convert the phrase to a clause: "As I walked to the store, the rain soaked my coat."

Traps that cost marks

  • Matching a verb to the nearest noun instead of the subject.
  • Using "it's" for "its," or "their" with a singular antecedent in formal prose.
  • Inserting commas around restrictive clauses.
  • Treating a phoneme as a letter rather than a sound.