DUPLE (C2) study materials
DUPLE (C2) study resources

DUPLE (C2): Grammar, Syntax, and Usage

DUPLE (C2) · Work through your exam, one topic at a time.

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Grammar, Syntax, and Usage

Domain 3 - Grammar, Syntax and Usage - tests advanced structures receptively and productively, not as isolated rules but as meaning choices. The exam rewards the candidate who knows why inversion, clefting or a subjunctive is used, and who can see when a structure is grammatical but inappropriate to the register.

Structures that decide marks

  • Inversion after fronted negatives: “Not until the audit was published did the scale of the loss become clear.” Fronting not only, rarely, seldom or under no circumstances forces auxiliary–subject inversion, and the main verb stays in base form.
  • Clefts for focus: “It was the delay that cost them the contract”; pseudo-cleft: “What mattered was the timing.”
  • Mandative subjunctive: “The board insisted that he resign”, “that he be informed.” British English often prefers “should resign”; choose one pattern and stay consistent.
  • Conditional alternatives: “Had we known”; “Were it not for the guarantee”; “But for the weather.” Mixed conditionals: “If she had taken the job, she would be in Brussels now.”
  • Participle clauses need subject control: “Having reviewed the file, the committee rejected it” - the committee reviewed. Dangling: “Having reviewed the file, the decision was rejected.”
  • Modal perfects carry distinct meanings: “must have left” (deduction), “needn't have left” (did so unnecessarily), “didn't need to leave” (no obligation, probably did not).

Agreement, reference and punctuation

  • “A number of” takes a plural verb; “the number of” takes a singular one.
  • “None of” accepts singular or plural; be consistent within the text.
  • Semicolons join independent clauses; colons introduce an explanation or a list, not a clause fragment.

Worked example

Incorrect: “Not only the costs rose, but also the delays increased.”

Correct: “Not only did the costs rise, but the delays also increased.”

Reasoning: “not only” in initial position triggers inversion in the first clause, so the auxiliary “did” precedes the subject and “rise” stays in base form. In the second clause, “also” sits next to the element it modifies; “but also the delays increased” reads as though only the delays are being added.

Traps

  • Hypercorrection: “between you and I”, “whom” used as a subject.
  • Comma splices and run-on sentences in otherwise sophisticated prose.
  • Tense drift when reporting speech or summarising a plot.
  • “Which” where “that” is needed in a defining relative clause, changing the meaning.
  • Overusing the subjunctive in registers that prefer “should”.