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