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