Conjugation of the verb "known"
Conjugation of the verb know[nəu],
irregular 
Indicative
Present Indefinite
Present Continuous
Present Perfect
Present Perfect Continuous
Past Indefinite
Past Continuous
Past Perfect
Past Perfect Continuous
Future Indefinite
Future Continuous
Future Perfect
Future Perfect Continuous
Indicative
Present Indefinite
I don't knowyou 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 knowingyou 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 knownyou 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 knowingyou 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 knowyou 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 knowingyou 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 knownyou 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 knowingyou 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 knowyou 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 knowingyou 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 knownyou 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 knowingyou 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
Present Continuous
Present Perfect
Present Perfect Continuous
Past Indefinite
Past Continuous
Past Perfect
Past Perfect Continuous
Future Indefinite
Future Continuous
Future Perfect
Future Perfect Continuous
Conditional
Conditional Present
Conditional Present Continuous
Conditional Perfect
Conditional Perfect Continuous
Conditional
Conditional Present
I wouldn't knowyou 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 knowingyou 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 knownyou 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 knowingyou 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
Conditional Present Continuous
Conditional Perfect
Conditional Perfect Continuous
Participles
Present
Past
Infinitives
Infinitives
Popular English Verbs
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