Dictionary.com Word FAQs
Can I ever end a sentence with a preposition?
The word preposition (examples: at, in, of, to) is so named because such words normally precede the position of their objects in a prepositional phrase. Some people then took this definition to mean that a preposition always had to come before its object and could never end a sentence. Latin has a rule against ending a sentence with a preposition, but English has no such rule. If a sentence is unusually long, and the ending preposition will be a long distance from its object, then it is best to avoid ending with the preposition. It is sometimes preferable to avoid ending with a preposition, and sometimes it is preferable to end with a preposition. "Where are you from?" is more natural than, "From where are you?" As general practice, one should avoid ending a sentence with a preposition as a matter of style rather than grammar. If the sentence sounds good and clear and ends with a preposition, then go with it. On this subject, a story involving Winston Churchill is often told. When an editor dared to change a sentence of Churchill's that appeared to end inappropriately with a preposition, Churchill responded by writing to the editor, "This is the kind of impertinence up with which I shall not put." His purpose was to illustrate the awkwardness that can result from rigid adherence to the notion that prepositions at the end of sentences are always incorrect.