Past Modals: MUST HAVE + 3rd form (Past Participle) and CAN'T HAVE / COULDN't HAVE + 3rd form (Past Participle)

The police found the body of the man. He had been stabbed with a knife 49 times.
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Terms in this set (8)
The police found the body of the man. He had been stabbed with a knife 49 times.
Someone must have really hated him...or...It couldn't have been an accident...or...He can't have fallen on the knife 49 times!...or...It must have been someone who knew him well because it shows a lot of anger!
A lot of money was stolen from the office. The window was broken, but all the broken glass was on the outside of the office.
It must have been someone who worked in the office...or...The thief couldn't have come in through that broken window.
He kept saying he loved her and promised to marry her, but then he married one of her friends.
He can't have really loved her...or...He must have been lying....or...He must have fallen in love with her friend unexpectedly
I came home and there were three police cars and two fire engines outside my house.
Something terrible must have happened...or...All of the police cars and fire engines can't have come to the wrong house...or...There must have been a crime or an accident.
Frank has refused to speak with his wife for the last three days.
They must have had an argument...or...Something bad, or serious, must have happened...or...They can't have slept very peacefully last night...or...She must have done something wrong.
When I got back home after vacation, I saw that all the trees on my block were lying across the street, the power lines were all down, and three of the houses were completely destroyed.
A tornado must have hit my town while I was away...or...A hurricane must have flattened the houses...or...An explosion must have destroyed my whole block...or...A crazy party couldn't have caused all this damage.
All four of the tires on my car were slashed with a knife. Now, they are completely flat.
It can't have been an accident...or...Someone must have done this on purpose...or...Someone must have wanted to make me really angry....or...It couldn't have been an angry cat.
The little red box at the top of my Facebook instant message page says "2".
Someone must have written to me...or...Two people must have been trying to contact me.