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