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‘Have they arrived yet?’ ‘I don’t know.’
If you don’t know the answer, just guess.
How do you know my name?
I knew she wasn’t really happy.
I don’t know where the money’s coming from.
I need to know if she’s made a decision yet.
I don’t know anything about it.
We know for a fact that the fire was started deliberately.
We know from experience that unemployment makes the problem worse.
None of us really knew what had gone wrong.
The ancient city is known to have existed in the region.
The pilots were experienced and known to be very competent.
Some drugs are known to cause damage to unborn children.
Some of you may know Ivan already.
I felt I hardly knew my father.
She had known Nancy for years.
The village was known as Garden Mill.
They know all their tutors by their first names.
He was best known as a painter.
We know her mostly for her love poetry.
It was the only comfort and warmth she had ever known.
I’ve never known her to make a joke.
I still know the words to some of these hymns.
This could mean the end of life as we know it.
As you know, we’ve already accepted an offer from another company.
He could be a murderer for all I know.
It took a while to get to know the city properly.
How should I know what she thinks about it?
I don’t know whether economic issues were discussed specifically.
‘It’ll be boring.’ ‘Oh I don’t know. It might be fun.’
I don’t know that we need to discuss this.
I don’t know about you, but I’m starving.
I don’t know what they were thinking of.
I don’t know how he could be so cruel.
He’s not my boyfriend any more, if you must know.
I know the plan is pretty rough, but you get the idea.
I know how hard this is for you.
I’m so tired, I don’t know whether I’m coming or going.
We asked several of them to help, but they didn’t want to know.
used informally, in spoken language
used when you have no information and you are unable to guess the answer to a question
used when you do not know something and you feel annoyed that someone is asking you about it
It beats me
used for saying that you do not know or understand something
used for saying that you don’t know something because it is impossible for anyone to know it
used for saying that you know as little about something as the person who asked you about it
used for saying that something may be true, but you do not have enough information to know whether it is or not
This is the British English definition of know. View American English definition of know.