Never end a sentence with a preposition.

[kyanited]

Never end a sentence with a preposition, because it will cause irritable syntax syndrome.

"Winston Churchill's rejoinder beloved by all who hate learning silly rules: 'This is the sort of English up with which I will not put' (St. Martin's Press, 1997, p. 55)." "even though great literature from Chaucer to Shakespeare to Milton is bristling with sentences ending in prepositions." "At any rate, this is a rule that modern grammarians have tried to get us out from under."

Phew!