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