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Prepositions vs Complementizer - What's the difference?

prepositions | complementizer |

As nouns the difference between prepositions and complementizer

is that prepositions is plural of lang=en while complementizer is a form of subordinate conjunction.

As a verb prepositions

is third-person singular of preposition.

prepositions

English

Alternative forms

* (archaic)

Noun

(head)
  • Verb

    (head)
  • (preposition)
  • ----

    complementizer

    English

    Alternative forms

    * complementiser

    Noun

    (wikipedia complementizer) (en noun)
  • (linguistics) a form of subordinate conjunction
  • * "That" is a complementizer in the sentence "Mary believes that it is raining".
  • *
  • However, what is of particular interest to us here is
    the fact that the presence of the Complementiser' ''whether'' in (37) (b) above
    excludes the possibility of having an inverted Auxiliary in pre-subject posi-
    tion, as we see from the ungrammaticality of (38) below:
    (38)      *John wondered ''whether would he get a degree''
    Why should this be? The answer we propose here is that this is because both
    '''Complementisers''' and inverted Auxiliaries occupy the pre-subject C position:
    hence, when (as in (38) above) the C position is already filled by the '''Comple-
    mentiser
    ''whether , inversion of the Auxiliary is not possible, on the assumption
    that once a given position is filled by one constituent, it cannot be filled by
    another (i.e. we can only have one constituent occupying any given position).