"I didnt knew" or "know"? whats correct?

Question

I didnt knew/know that you were there.

Answer 1

It's know.

Know refers to presently,realize,at this time in the present time frame.

Knew refers to understanding, realizing something already as in the past.

Answer 2

Know.

Knew means a past tense of knowledge as in
"I knew the answer yesterday but I have forgotten."

Know means a preservation of knowledge as in
"I did not know that I could do that but now I do."

Answer 3

it is "know", but all these explanations are ********.

"Knew" is the past tense of "to know"; in English however when you make a sentence negative or into a question, you conjugate the verb "to do" and leave the second verb in the infinitve (usually minus the "to")

so i DID (past tense of "to do") not know - u dont need to conjugate know, because the sentence is already past tense

Answer 4

Know.

'Knew' refers to the past, if you are talking about something in the past you would say "I knew that". If you are talking about something in the present you would say "I know that". Even though 'didn't' refers to the past you are talking about it as if it were current and so you would always use know in that context.

Answer 5

"know" is correct because when you use a form of "do" with another verb, the second verb is always in the infinitive form without the "to" in front of it. "I didn't understand". "Do you understand?" While "did" is the past tense of "do" and indicates an action in the past, the other verb is always used in the infinitive form.

Answer 6

"I didn't know you were there", is correct.

Or, you could say,

"I knew you were there", or "I knew you were not there". These are both correct also.

Answer 7

the correct answer is i didn't know

Answer 8

when the phrase 'i do not know ' you change it to past , you will change the aux word not the main verb. so you have to say " i did not know"

Answer 9

It would be know

Answer 10

I didn't know you were there.
I knew you were there.
I knew you weren't there.