Looking at the way your questuion is worded, I wonder if you're not putting us on.

I asked the same question many months ago. Here's the answer I picked: "The truth is that very few native English speakers would criticize you for ending a sentence with a preposition. In fact, few would even notice. Anybody who would criticize you would be criticized themselves for being so strict. Even a noted English speaker such as Winston Churchill made fun of hold to such a strict rule. He said (jokingly): "Ending a sentence with a preposition is something up with which we shall not put!" Anybody would have said "...something we shall not put up with." His sentence sounded incredibly awkward and he meant that it should be, just to point out the silliness of keeping to such a strict rule. I'm willing to bet that if you talk with native English speakers for the next 10 years and end sentences with prepositions, you wouldn't get one complaint. The only exception might be formal written English, but you would probably not be criticized even then." Here's the link if you want to check my question and others' answers: http://www.italki.com/answers/question/56353.htm

i do it all the time. the hell with convention :P

No, it isn't.The rule was invented by the upper classes many years ago, suggesting that only people from the lower class ended a sentence with a preposition. Grammatically, it is perfectly OK.

Sometimes I think so... other times I let it pass, but.