MODAL VERBS:

Criticizing past actions/ recommendations about the past

SHOULD
SHOULDN'T      + Present Perfect (HAVE + Past Participle)


Examples:

1. The dogs run away. She should have closed the garden gate. 
2. He failed the test. He should have studied during the holidays. 
3. He threw a stone and broke a window. He shouldn't have thrown stones.
4. He got stomach ache. He shouldn't have eaten so many muffins.