She must has done something really bad.
He could been in troubles.
My parents might not been happy with my grades.
He cannot have studied so much.
Karen could have see a nice movie.
Erick must have bought a nice car.
Use MUST or CANNOT
The phone rang but I didn’t hear it. I am sure. (be)
I asleep
Jane walked past me without speaking. She is my best friend (ignore)
she me, maybe she did not see me.
The jacket you bought is very good quality. (be)
When I woke up this morning, the light was on.
My mom must have turn it on.
My mom must have turned it on.
The lights were red but the car didn’t stop.
The driver might have not seen the red light.
