posted by John .
1. I am looking for a big house which I can live in.
2. I am looking for a big house to live in.
3. I am looking for a big house which to live in.
4. I am looking for a big house in which to live.
(Sentence 1 is a complex sentence. The others are simple sentences. Are all the sentences grammatical and do they have the same meaning?)
1 is awkward ~~> I am looking for a big house in which to live.
2 is fine.
3 is incorrect; see #1.
4 is fine; see #1.
Complex sentences = 1 and 4.
Simple sentence = 2.
Incorrect = 3.
Try not to end sentences with prepositions, which are designed to relate to objects ("live in" what?).
I hope this helps a little more. Thanks for asking.