posted by rfvv .
1. I bought the house to live in.
2. I bought the house which I can live in.
3. I bought the house which I will live in.
4. I bought the house which I should live in.
(Does #1 mean #2, #3, or #4?)
5. I have a friend to help me.
6. I have a friend who can help me.
7. I have a friend who will help me.
8. I have a friend who must help me.
(Does #5 mean #6 or #7? Or #8? Can all the three sentences be changed into #5? Then, I think the meaning of #5 is not clear. Don't you think so?)
The verbs "can", and "should" do not have quite the same meaning. "Can" means that the house is liveable. "Should" means that you are obligated to live there.
1 and 3 have pretty much the same meaning.
# 8 does not have the same meaning and the others. "Must" means that one has to do something.