General Writing and Grammar Help/for whom - for

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Question
Dear Ted:

Which of the following sentences is grammatically correct?

1) My geology professor, for whom I am collecting data, is in Iceland for two weeks.

2) My geology professor, I am collecting data for, is in Iceland for two weeks.

As always, many, many thanks for your valuable help.

Paolo

Answer
Dear Paolo:

Which of the following sentences is grammatically correct?

1) My geology professor, for whom I am collecting data, is in Iceland for two
weeks.

2) My geology professor, I am collecting data for, is in Iceland for two weeks.

*** The first sentence is correct.  Think of the parenthetical clause as being in this word order:  I am collecting data FOR WHOM.  WHOM is the object of the preposition FOR.

In the second sentence, there is NO OBJECT for the preposition OF.  Prepositions must have objects.

Ted  

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Ted Nesbitt

Expertise

I am the bibliographic instruction and reference librarian at a public college. Some members of the English department recommend me to their students. I offer assistance in grammar, punctuation, sentence structure, and paragraph development. My master`s thesis concerns William Faulkner`s tragic novels. I formerly taught advanced placement English at two schools in the Philadelphia area.

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I have been one of the highest-ranked volunteers in this category for more than a decade.

Education/Credentials
B. A. and M. A in English; MSIS in Library & Information Sciences; graduate study in philosophy

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