do I not engineer? do you not engineer? does she not engineer? do we not engineer? do you not engineer? do they not engineer?
Present continuous
am I not engineering? are you not engineering? is she not engineering? are we not engineering? are you not engineering? are they not engineering?
Preterite
did I not engineer? did you not engineer? did she not engineer? did we not engineer? did you not engineer? did they not engineer?
Preterite continuous
was I not engineering? were you not engineering? was she not engineering? were we not engineering? were you not engineering? were they not engineering?
Present perfect
have I not engineered? have you not engineered? has she not engineered? have we not engineered? have you not engineered? have they not engineered?
Present perfect continuous
have I not been engineering? have you not been engineering? has she not been engineering? have we not been engineering? have you not been engineering? have they not been engineering?
Pluperfect
had I not engineered? had you not engineered? had she not engineered? had we not engineered? had you not engineered? had they not engineered?
Pluperfect continuous
had I not been engineering? had you not been engineering? had she not been engineering? had we not been engineering? had you not been engineering? had they not been engineering?
Future
will I not engineer? will you not engineer? will she not engineer? will we not engineer? will you not engineer? will they not engineer?
Future continuous
will I not be engineering? will you not be engineering? will she not be engineering? will we not be engineering? will you not be engineering? will they not be engineering?
Future perfect
will I not have engineered? will you not have engineered? will she not have engineered? will we not have engineered? will you not have engineered? will they not have engineered?
Future perfect continuous
will I not have been engineering? will you not have been engineering? will she not have been engineering? will we not have been engineering? will you not have been engineering? will they not have been engineering?
Conditional
Present
would I not engineer? would you not engineer? would she not engineer? would we not engineer? would you not engineer? would they not engineer?
Present continuous
would I not be engineering? would you not be engineering? would she not be engineering? would we not be engineering? would you not be engineering? would they not be engineering?
Past
would I not have engineered? would you not have engineered? would she not have engineered? would we not have engineered? would you not have engineered? would they not have engineered?
Past continuous
would I not have been engineering? would you not have been engineering? would she not have been engineering? would we not have been engineering? would you not have been engineering? would they not have been engineering?