Conjugation of the verb “know”

know
Past participle
known
Present participle
knowing

Indicative

Present

Iknow
youknow
he/she/itknows
weknow
youknow
theyknow

Past

Iknew
youknew
he/she/itknew
weknew
youknew
theyknew

Present perfect

Ihave known
youhave known
he/she/ithas known
wehave known
youhave known
theyhave known

Past perfect

Ihad known
youhad known
he/she/ithad known
wehad known
youhad known
theyhad known

Future

Iwill know
youwill know
he/she/itwill know
wewill know
youwill know
theywill know

Future perfect

Iwill have known
youwill have known
he/she/itwill have known
wewill have known
youwill have known
theywill have known