Conjugation of the verb "have known"

Conjugation of the verb know[nəu], irregular     

know not knowknow?
All forms Indicative Conditional Participles Infinitives

Indicative

Present Indefinite

I know
you know
he/she/it knows
we know
you know
they know

Present Continuous

I am knowing
you are knowing
he/she/it is knowing
we are knowing
you are knowing
they are knowing

Present Perfect

I have known
you have known
he/she/it has known
we have known
you have known
they have known

Present Perfect Continuous

I have been knowing
you have been knowing
he/she/it has been knowing
we have been knowing
you have been knowing
they have been knowing

Past Indefinite

I knew
you knew
he/she/it knew
we knew
you knew
they knew

Past Continuous

I was knowing
you were knowing
he/she/it was knowing
we were knowing
you were knowing
they were knowing

Past Perfect

I had known
you had known
he/she/it had known
we had known
you had known
they had known

Past Perfect Continuous

I had been knowing
you had been knowing
he/she/it had been knowing
we had been knowing
you had been knowing
they had been knowing

Future Indefinite

I will know
you will know
he/she/it will know
we will know
you will know
they will know

Future Continuous

I will be knowing
you will be knowing
he/she/it will be knowing
we will be knowing
you will be knowing
they will be knowing

Future Perfect

I will have known
you will have known
he/she/it will have known
we will have known
you will have known
they will have known

Future Perfect Continuous

I will have been knowing
you will have been knowing
he/she/it will have been knowing
we will have been knowing
you will have been knowing
they will have been knowing

Indicative

Present Indefinite

I don't know
you don't know
he/she/it doesn't know
we don't know
you don't know
they don't know

Present Continuous

I am not knowing
you aren't knowing
he/she/it isn't knowing
we aren't knowing
you aren't knowing
they aren't knowing

Present Perfect

I haven't known
you haven't known
he/she/it hasn't known
we haven't known
you haven't known
they haven't known

Present Perfect Continuous

I haven't been knowing
you haven't been knowing
he/she/it hasn't been knowing
we haven't been knowing
you haven't been knowing
they haven't been knowing

Past Indefinite

I didn't know
you didn't know
he/she/it didn't know
we didn't know
you didn't know
they didn't know

Past Continuous

I wasn't knowing
you weren't knowing
he/she/it wasn't knowing
we weren't knowing
you weren't knowing
they weren't knowing

Past Perfect

I hadn't known
you hadn't known
he/she/it hadn't known
we hadn't known
you hadn't known
they hadn't known

Past Perfect Continuous

I hadn't been knowing
you hadn't been knowing
he/she/it hadn't been knowing
we hadn't been knowing
you hadn't been knowing
they hadn't been knowing

Future Indefinite

I shan't / won't know
you won't know
he/she/it won't know
we shan't / won't know
you won't know
they won't know

Future Continuous

I shan't / won't be knowing
you won't be knowing
he/she/it won't be knowing
we shan't / won't be knowing
you won't be knowing
they won't be knowing

Future Perfect

I shan't / won't have known
you won't have known
he/she/it won't have known
we shan't / won't have known
you won't have known
they won't have known

Future Perfect Continuous

I shan't / won't have been knowing
you won't have been knowing
he/she/it won't have been knowing
we shan't / won't have been knowing
you won't have been knowing
they won't have been knowing

Indicative

Present Indefinite

do I know?
do you know?
does he/she/it know?
do we know?
do you know?
do they know?

Present Continuous

am I knowing?
are you knowing?
is he/she/it knowing?
are we knowing?
are you knowing?
are they knowing?

Present Perfect

have I known?
have you known?
has he/she/it known?
have we known?
have you known?
have they known?

Present Perfect Continuous

have I been knowing?
have you been knowing?
has he/she/it been knowing?
have we been knowing?
have you been knowing?
have they been knowing?

Past Indefinite

did I know?
did you know?
did he/she/it know?
did we know?
did you know?
did they know?

Past Continuous

was I knowing?
were you knowing?
was he/she/it knowing?
were we knowing?
were you knowing?
were they knowing?

Past Perfect

had I known?
had you known?
had he/she/it known?
had we known?
had you known?
had they known?

Past Perfect Continuous

had I been knowing?
had you been knowing?
had he/she/it been knowing?
had we been knowing?
had you been knowing?
had they been knowing?

Future Indefinite

will I know?
will you know?
will he/she/it know?
will we know?
will you know?
will they know?

Future Continuous

will I be knowing?
will you be knowing?
will he/she/it be knowing?
will we be knowing?
will you be knowing?
will they be knowing?

Future Perfect

will I have known?
will you have known?
will he/she/it have known?
will we have known?
will you have known?
will they have known?

Future Perfect Continuous

will I have been knowing?
will you have been knowing?
will he/she/it have been knowing?
will we have been knowing?
will you have been knowing?
will they have been knowing?

Conditional

Conditional Present

I would know
you would know
he/she/it would know
we would know
you would know
they would know

Conditional Present Continuous

I would be knowing
you would be knowing
he/she/it would be knowing
we would be knowing
you would be knowing
they would be knowing

Conditional Perfect

I would have known
you would have known
he/she/it would have known
we would have known
you would have known
they would have known

Conditional Perfect Continuous

I would have been knowing
you would have been knowing
he/she/it would have been knowing
we would have been knowing
you would have been knowing
they would have been knowing

Conditional

Conditional Present

I wouldn't know
you wouldn't know
he/she/it wouldn't know
we wouldn't know
you wouldn't know
they wouldn't know

Conditional Present Continuous

I wouldn't be knowing
you wouldn't be knowing
he/she/it wouldn't be knowing
we wouldn't be knowing
you wouldn't be knowing
they wouldn't be knowing

Conditional Perfect

I wouldn't have known
you wouldn't have known
he/she/it wouldn't have known
we wouldn't have known
you wouldn't have known
they wouldn't have known

Conditional Perfect Continuous

I wouldn't have been knowing
you wouldn't have been knowing
he/she/it wouldn't have been knowing
we wouldn't have been knowing
you wouldn't have been knowing
they wouldn't have been knowing

Conditional

Conditional Present

would I know?
would you know?
would he/she/it know?
would we know?
would you know?
would they know?

Conditional Present Continuous

would I be knowing?
would you be knowing?
would he/she/it be knowing?
would we be knowing?
would you be knowing?
would they be knowing?

Conditional Perfect

would I have known?
would you have known?
would he/she/it have known?
would we have known?
would you have known?
would they have known?

Conditional Perfect Continuous

would I have been knowing?
would you have been knowing?
would he/she/it have been knowing?
would we have been knowing?
would you have been knowing?
would they have been knowing?

Participles

Present

knowing

Past

known

Infinitives

Infinitives

to know
to have known
to be knowing
to have been knowing
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