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Section A.11 Complement Clauses

This section shows noun clauses (complement clauses) in subject and object positions, including that-clauses, if/whether clauses, and infinitive complements.
Syntax tree showing that-clause functioning as object complement
Figure A.11.1. That-Clause as Object: I know that she is brilliant
Syntax tree showing that-clause functioning as subject
Figure A.11.2. That-Clause as Subject: That she passed surprised everyone
Syntax tree showing if-clause functioning as object complement
Figure A.11.3. If/Whether Clause as Object: I wonder if she left
Syntax tree showing complement clause with omitted "that" complementizer
Figure A.11.4. Omitted Complementizer: I know she is brilliant
Syntax tree showing infinitive clause as verb complement
Figure A.11.5. Infinitive Complement: She wants to leave