Complementizers

They introduce complement clauses which can be either finite or non-finite.

Examples:

• Complementizers for finite complement clauses: that (declaratives), if/whether (interrogative)

1. Pat thinks [that Chris lives in New York].
   
2. Pat knows [that/whether Chris lives in New York].
   
3. Pat wonders [if/whether Chris lives in New York].
   

• Complementizer for infinitival complement clauses: for

1. Pat wants [for Chris to win the price].

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