I didn't knew you were sick. vs I didn't know you were sick

The correct version is "I didn't know you were sick." The verb "know" should not be in the past simple form ("knew") in this sentence. The correct form is commonly used in English.

Explained by Vince
Editor at TextRanch

Last updated: April 04, 2025 • 5040 views

This phrase is incorrect. The verb "know" should be in the past simple form, which is "knew."

"I didn't knew you were sick."

The correct form is "I didn't know you were sick."

Show examples from the web [+]

I was asking if he knew you were sick.
When Rudy showed up, he knew you were sick again.
Of course, that would require an illness that could wipe them all out before anyone even knew they were sick.
I didn't say you were sick.
No one in the legislature's office even knew she was sick.
If she knew what was going on in your head, she'd think you were sick.
Your friend came and said you were sick.
I knew my boy was sick.
She never even knew her mom was sick.
He was gone before I even knew he was sick.
I came because I knew you were sick
You knew you were sick, but you didn't know what it was.
I knew those dogs looked sick. I called animal control, I don't know if they ever followed up on it.
I was a little worried when I heard you were sick.
We could play Scrabble like we used to when you were sick.
I told them you were sick.
Your office said you were sick.
We called the office, and they said you were sick.
Now you said you were sick.
Right after you found out you were sick.

This phrase is correct and commonly used in English.

"I didn't know you were sick"

Use this phrase to express that you were not aware of someone being sick in the past.

Show examples from the web [+]

When I laid into you at your meeting, I didn't know that you were so sick.
I didn't know about any sick kid.
I didn't know how sick she was until the end.
I didn't know how sick he was, and I didn't take him to the hospital.
We didn't know Neal was getting sick.
I didn't know you were rehearsing.
You don't know you're sick.
I was diagnosed with depression and anxiety and I didn't know why I was sick.
You don't know how sick she's been.
I don't know what sick twisted world you live in.
You don't know what sick is.
He doesn't know you're sick.
I didn't know you prefer men.
I didn't know you could stoop this low.
I didn't know you liked men.
I didn't know you believed in ghosts, Scully.
I didn't know you had another Level.
I didn't know you were moving.
I didn't know you felt that way.
I didn't know you were part of the program, Nico.

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I didn't knew you were sick. vs I didn't know you were sick

"I didn't knew you were sick."

"I didn't know you were sick"

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