Hi, this is my test.My first to you.Man, I'm starting to ask questions.That means I'm learning grammar, which I hated.It's now interesting, like a game or a puzzle
What does every sentence means, and implies:
1) I shouldn't have written to him.He phoned shortly.
2) I needn't have written to him.He phoned shortly.
3) I didn't have to write to him.He phoned shortly.