do I know? do you know? does he know? do we know? do you know? do they know?
Present continuous
am I knowing? are you knowing? is he knowing? are we knowing? are you knowing? are they knowing?
Preterite
did I know? did you know? did he know? did we know? did you know? did they know?
Preterite continuous
was I knowing? were you knowing? was he knowing? were we knowing? were you knowing? were they knowing?
Present perfect
have I known? have you known? has he known? have we known? have you known? have they known?
Present perfect continuous
have I been knowing? have you been knowing? has he been knowing? have we been knowing? have you been knowing? have they been knowing?
Pluperfect
had I known? had you known? had he known? had we known? had you known? had they known?
Pluperfect continuous
had I been knowing? had you been knowing? had he been knowing? had we been knowing? had you been knowing? had they been knowing?
Future
will I know? will you know? will he know? will we know? will you know? will they know?
Future continuous
will I be knowing? will you be knowing? will he 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 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 have been knowing? will we have been knowing? will you have been knowing? will they have been knowing?
Conditional
Present
would I know? would you know? would he know? would we know? would you know? would they know?
Present continuous
would I be knowing? would you be knowing? would he be knowing? would we be knowing? would you be knowing? would they be knowing?
Past
would I have known? would you have known? would he have known? would we have known? would you have known? would they have known?
Past continuous
would I have been knowing? would you have been knowing? would he have been knowing? would we have been knowing? would you have been knowing? would they have been knowing?