do I warn? do you warn? does she warn? do we warn? do you warn? do they warn?
Present continuous
am I warning? are you warning? is she warning? are we warning? are you warning? are they warning?
Preterite
did I warn? did you warn? did she warn? did we warn? did you warn? did they warn?
Preterite continuous
was I warning? were you warning? was she warning? were we warning? were you warning? were they warning?
Present perfect
have I warned? have you warned? has she warned? have we warned? have you warned? have they warned?
Present perfect continuous
have I been warning? have you been warning? has she been warning? have we been warning? have you been warning? have they been warning?
Pluperfect
had I warned? had you warned? had she warned? had we warned? had you warned? had they warned?
Pluperfect continuous
had I been warning? had you been warning? had she been warning? had we been warning? had you been warning? had they been warning?
Future
will I warn? will you warn? will she warn? will we warn? will you warn? will they warn?
Future continuous
will I be warning? will you be warning? will she be warning? will we be warning? will you be warning? will they be warning?
Future perfect
will I have warned? will you have warned? will she have warned? will we have warned? will you have warned? will they have warned?
Future perfect continuous
will I have been warning? will you have been warning? will she have been warning? will we have been warning? will you have been warning? will they have been warning?
Conditional
Present
would I warn? would you warn? would she warn? would we warn? would you warn? would they warn?
Present continuous
would I be warning? would you be warning? would she be warning? would we be warning? would you be warning? would they be warning?
Past
would I have warned? would you have warned? would she have warned? would we have warned? would you have warned? would they have warned?
Past continuous
would I have been warning? would you have been warning? would she have been warning? would we have been warning? would you have been warning? would they have been warning?