You didn't knew about this vs you didn't know about this

The correct phrase is "you didn't know about this." The verb "know" should be in the base form after the auxiliary verb "did." The incorrect phrase uses the past tense form of "know," which is not grammatically correct.

Last updated: March 15, 2024 • 1547 views

You didn't knew about this

This phrase is incorrect. The verb "know" should be in the base form after the auxiliary verb "did."

The correct form is "you didn't know about this." Use the base form of the verb (know) after the auxiliary verb (did) in negative past sentences.

Show examples from the web [+]

Aug 9, 2014 ... ... to arrive, terminals etc. 5# - Solve problem faster. If you didn't knew about this before it's an awesome way to find an answer for you problem.
Jun 15, 2015 ... Same goes out to you though, I'll always love you. Also can we please pretend you didn't knew about this and act surprise? Yep? okay, thanks.
Mar 27, 2015 ... Yes, you will definitely start enjoying CSS if you didn't knew about this tool. It make CSS so easy, it lets you choose what you want to achieve ...
I bet you didn't knew about this country! Did you knew about this lucky country? I bet you didn't! - Tripzmate. There lies a country called Tuvalu in western pacific ...

Alternatives:

you didn't know about this

you didn't know about this

This phrase is correct and commonly used in English.

This phrase is the correct way to express that someone was not aware of something in the past. Use the base form of the verb (know) after the auxiliary verb (did) in negative past sentences.

Show examples from the web [+]

Jun 11, 2015 ... But we bet that there are a lot of things you didn't know about this down-home destination. 10 Things You Didn't Know About Cracker Barrel ...
May 29, 2015 ... we bet that there are some things you didn't know about this domestic diva. 10 Things You Didn't Know About Ina Garten (Slideshow).
May 26, 2015 ... But even if you've got your perfect Blizzard order down pat, we bet that there are still some things you didn't know about this legendary chain.
Jun 4, 2015 ... ... excited to learn about their newly released line of Snack Bites, we bet that there are some things you didn't know about this legendary snack.

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You didn't knew about this vs you didn't know about this