Don't you know that vs Don't you know which

Both phrases are correct, but they are used in different contexts. 'Don't you know that' is used when you are asking someone if they are aware of a specific fact or information. 'Don't you know which' is used when you are asking someone to choose between options or identify a specific item from a group.

Last updated: March 30, 2024 • 1127 views

This phrase is correct and commonly used in English when asking someone if they are aware of a specific fact or information.

"Don't you know that"

This phrase is used to question someone's knowledge about a particular piece of information or fact.

Examples:

Don't you know that smoking is bad for your health?
Don't you know that the meeting has been rescheduled?
Don't you know that she is allergic to peanuts?

Show examples from the web [+]

Don't you know that fighting is illegal?
Don't you know that shops are closed on Fridays?
Don't you know that any slip must be reported immediately?
Don't you know that the cinema is cruel?
Don't you know that all great...
Don't you know that this car is reserved?
Don't you know that non-stick pans are made with P.F.O.A.s?
Don't you know that I studied English in school?
Don't you know that it's all over
Don't you know that a deserted automobile always rates an investigation?
Don't you know that's where I come in?
Don't you know that plastic harms the Earth?
Don't you know that those people always used us?
Don't you know that we have am exam tomorrow?
Don't you know that hurts?
Don't you know that grandmas live someplace else?
Don't you know that school is banned for girls?
Don't you know that these items are forbidden?
Don't you know that's a secret?
Don't you know that the sources of information must be checked?

This phrase is correct and commonly used in English when asking someone to choose between options or identify a specific item from a group.

"Don't you know which"

This phrase is used to prompt someone to make a choice or identify a particular item from a selection.

Examples:

Don't you know which dress to wear?
Don't you know which book I'm talking about?
Don't you know which bus to take?

Show examples from the web [+]

Don't you know which day it is?
At this speed, you don't even know which pass you climbed.
You don't know which way to go.
You don't know which way to turn.
Sometimes you don't know which comes first.
And you don't know which one you like more.
You don't know which is lying.
You don't know which guards were paid off, not a good plan.
It's one of them and you don't know which.
You don't even know which building.
Look, you don't know which way this hearing is going to go...
I bet you don't even know which one of our secret dreams is to sing opera.
If you do n't know which is your $KDEDIR, type kde4-config - prefix in a shell.
You hear so many stories, you don't know which ones to believe.
It's only the most important thing in your life, and then you don't know which lab you used.
People, remember, if you don't know which door to open, always account for variable change.
He works in a law firm, you don't know which one.
Don't you want to know which marine life we encountered?
But until the law happens to you, believe me, you don't know which way you're going to go.
Steiner said that you have two loves... and you don't know which one to choose.

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Don't you know that vs Don't you know which