Examples of 'must have known what' in a sentence

Meaning of "must have known what"

must have known what: Indicates a strong possibility or assumption that someone was aware or had information about something in the past

How to use "must have known what" in a sentence

Basic
Advanced
must have known what
You must have known what was waiting.
It seems to me that someone must have known what was going on.
She must have known what he was like.
Kerviel says his superiors must have known what he was doing.
He must have known what would happen.
He believed that hundreds of children must have known what he knew.
You must have known what was happening.
Linz worked as a manager at that factory and he must have known what was happening.
My parents must have known what was happening.
I must have known what I was gonna do but I do not remember thinking about it.
Whoever took her must have known what he was doing.
Must have known what was going on. - It seems to me that the special masters.
Whoever killed him must have known what he was gonna tell Booth.
He must have known what might happen.
I did not kill her . you must have known what was happening.

See also

You must have known what he was gonna do.
It makes a lot of sense. He must have known what would happen.
He must have known what was going to happen to her.
She was already sick . She must have known what Thorne was up to.
He must have known what people would make of it.
I woke up alone, realizing that Alex must have known what a slut you are.
The ape must have known what was coming.
Whatever it was, I did not find it . You must have known what was waiting.
Feds must have known what he was up to.
I thought Jan Egil was involved, He must have known what they were doing.
Steele must have known what was happening to him.
You're both smart people. You must have known what he was gonna do.
She must have known what was going on.
The Greatest… Muhammad Ali. Steele must have known what was happening to him.
She must have known what he was up to.
Tell me Mr. Pire, Tina Lombardi, you must have known what she had planned!
She must have known what could happen.
Tell me Mr. Piere, Tina Lombardi, you must have known what she had planned!
He must have known what his own team was up to.
I told him, well, God must have known what he was doing.
I must have known what he wanted.
But don't you think that Joe must have known what was happening to his sons?
He must have known what he was doing.
Tell me Mr. Pierre, Tina Lombardi, you must have known what she had planned!
You must have known what she was up to.
On some level, he must have known what was going on.
You must have known what she meant.
For one thing, you must have known what Seb was up to.
He must have known what it would mean to me to meet my real father.
The Captain must have known what Adalind did.
He must have known what was in the case and pinched it.
Somehow, he must have known what was coming.
He must have known what you guys were up to at the bar.
So, my father must have known what the Ark was.
You must have known what those unresolved items were.

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Examples of using Known
I would known they turned themselves around
It uses none of the known building blocks
Known details concerning voyage and crew
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Examples of using Must
They must have changed their view
Someone you know must have died
He must have loved you very much
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Examples of using Have
These documents have been in my family for centuries
Have this done by the customer service only
He could not have chosen a worse time
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