WHEN TO USE THAT IN RELATIVE CLAUSE
We use that for people or things.
1. That is used to replace who, whom, which in defining relative clauses:
- The doctor whom/ that I was hoping to see wasn't on duty.
2. After superlatives:
- He was the most interesting person that I have ever met.
3. After only, the first, the second, the last,...
- It was the first time that I heard of it.
4. After noun phrase compose of person and object:
- She talked about the people and places that she had visited.
5. After indefinite pronouns, quantity pronouns: someone, something, anyone, anything, noone, nothing, all, some, any, little,...
- These books are all that my sister left me.
6.When that has a preposition, the preposition always comes at the end:
- I didn't know the uncle that I inherited the money from.
- We can't find the chainsaw that we cut all the wood up with.
NOTES:
1.We cannot use "that" in non-defining relative clauses.
2. We cannot use use "that" after preposition.