Choose the correct perfect modal.

1. My brother shouldn't have / could have failed the test. He didn't study hard.

2. Patrick must have/cant have eaten the burgers. He doesn't like fast food at all.

3. I might have / should have dropped my keys somewhere in the picnic area.

4. Yuri must have/might have written these letters, I know his handwriting. I am sure that's him!

5. It was my fault should have/cant have warned you about him.

Cevapları lazım acil lütfen ​