すべき

shouldが使えるようになったらshould have(=should've)を使ってみよう

You should have been more careful.
You should have been looking in your mirror.
(車の事故があって、、)ミラー(の中をよく)を見るべきだったね
You should have married her.
You should have told you before lesson.

You should call her. 彼女に連絡すべきだ。

You should have call her. 彼女に連絡すべきだった。