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