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