1.have done sth.已经做了某事

Now you've broken his vase.

2.I'm awfully sorry我很抱歉

Tom,I'm awfully sorry.

3.should have done sth.本该做了某事

I should have put that vase away.

4.don't need to do sth.没必要做某事

You don't need to do that.

5.I have…我有……

I have an excuse to buy a new one. 5fyss/DcEFo7ZllDTQcNzNyBbl1keGshRsAsl/mx07EXp0CHM/ua4+gvOtBcF2d8