1) I'll try to finish this tonight but I might not have enough time
2) Don't do that! If you break the law, you may go to prison.
3) Steve has promised to help me, but he may not keep his promise.
4) Ellie might not remember. She hasn't got a very good memory.
5) Our neighbours might look after our dog while we're on holiday. I hope so.
6) My mum's looking for a holiday house. She may find one in the south of France.