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