Used and loved by millions
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
you know
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "you know" is grammatically correct and can be used in written English.
It is typically used to soften language or to express understanding between two people. For example, you could say "It was a difficult decision, you know."
✓ Grammatically correct
News & Media
Academia
Science
Alternative expressions(20)
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
60 human-written examples
When you know, you know.
News & Media
You know you done!
News & Media
You know you do.
News & Media
you know.
I know you know".
News & Media
you know.
News & Media
You know...
News & Media
You know?
Science
You know, so yeah.
Science
You know, deadlines..
How do you know?
Expert writing Tips
Best practice
Use "you know" sparingly in formal writing. Overuse can make your writing seem less polished and more conversational than intended.
Common error
Avoid using "you know" as a crutch. If you find yourself using it frequently, revise your sentences to be more direct and concise.
Linguistic Context
The phrase "you know" primarily functions as a discourse marker or filler. As Ludwig AI explains, its purpose is to soften statements, seek affirmation, or create a sense of shared understanding. Examples in Ludwig demonstrate its usage in various conversational contexts.
Frequent in
Science
38%
News & Media
30%
Formal & Business
32%
Less common in
Academia
0%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, the phrase "you know" is a grammatically correct and exceptionally common discourse marker primarily functioning as a filler or to seek confirmation. As Ludwig AI confirms, it is appropriate for informal contexts and serves to soften statements or engage the listener. While its frequent presence across diverse domains like science and news media highlights its versatility, it is generally discouraged in formal writing. Alternatives such as "you see" or "do you know what I mean" can be considered for nuanced communication. Remember to be mindful of the writing context and aim to prevent overuse.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
y'know
Informal, contracted version of the original phrase
you see
Replaces "know" with "see", shifting the emphasis to visual understanding or agreement.
do you know what i mean
Expands the phrase to explicitly ask for comprehension.
you understand
Directly asks if the listener comprehends the information.
right
A short, conversational tag question seeking agreement.
okay
Indicates agreement or understanding, often used as a transition.
get it
Informal way to ask if someone understands something.
are you following
Inquires whether the listener is keeping up with the conversation.
if you know what i mean
Subtly hints at a potentially sensitive or suggestive topic.
innit
British slang equivalent to "isn't it", seeking confirmation.
FAQs
How can I use "you know" in a sentence?
"You know" is typically used as a filler phrase to soften statements, seek confirmation, or create a sense of shared understanding. For example, "It was a tough decision, "you know"?"
What's a more formal alternative to "you know"?
In formal contexts, consider alternatives like "as you are aware", "as you may know", or simply rephrase the sentence to eliminate the need for a filler phrase.
Is it grammatically correct to use "you know" in written English?
Yes, it's grammatically correct, but its frequent use can make the text sound informal. Use it sparingly in formal writing to maintain a professional tone.
When is it appropriate to use "you know"?
"You know" is appropriate in informal conversations, casual writing, or when you want to create a sense of rapport with the reader or listener. It can also be used to express a shared understanding or to check if the other person is following your reasoning.
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