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