do I not double-glaze? do you not double-glaze? does he not double-glaze? do we not double-glaze? do you not double-glaze? do they not double-glaze?
Present continuous
am I not double-glazing? are you not double-glazing? is he not double-glazing? are we not double-glazing? are you not double-glazing? are they not double-glazing?
Preterite
did I not double-glaze? did you not double-glaze? did he not double-glaze? did we not double-glaze? did you not double-glaze? did they not double-glaze?
Preterite continuous
was I not double-glazing? were you not double-glazing? was he not double-glazing? were we not double-glazing? were you not double-glazing? were they not double-glazing?
Present perfect
have I not double-glazed? have you not double-glazed? has he not double-glazed? have we not double-glazed? have you not double-glazed? have they not double-glazed?
Present perfect continuous
have I not been double-glazing? have you not been double-glazing? has he not been double-glazing? have we not been double-glazing? have you not been double-glazing? have they not been double-glazing?
Pluperfect
had I not double-glazed? had you not double-glazed? had he not double-glazed? had we not double-glazed? had you not double-glazed? had they not double-glazed?
Pluperfect continuous
had I not been double-glazing? had you not been double-glazing? had he not been double-glazing? had we not been double-glazing? had you not been double-glazing? had they not been double-glazing?
Future
will I not double-glaze? will you not double-glaze? will he not double-glaze? will we not double-glaze? will you not double-glaze? will they not double-glaze?
Future continuous
will I not be double-glazing? will you not be double-glazing? will he not be double-glazing? will we not be double-glazing? will you not be double-glazing? will they not be double-glazing?
Future perfect
will I not have double-glazed? will you not have double-glazed? will he not have double-glazed? will we not have double-glazed? will you not have double-glazed? will they not have double-glazed?
Future perfect continuous
will I not have been double-glazing? will you not have been double-glazing? will he not have been double-glazing? will we not have been double-glazing? will you not have been double-glazing? will they not have been double-glazing?
Conditional
Present
would I not double-glaze? would you not double-glaze? would he not double-glaze? would we not double-glaze? would you not double-glaze? would they not double-glaze?
Present continuous
would I not be double-glazing? would you not be double-glazing? would he not be double-glazing? would we not be double-glazing? would you not be double-glazing? would they not be double-glazing?
Past
would I not have double-glazed? would you not have double-glazed? would he not have double-glazed? would we not have double-glazed? would you not have double-glazed? would they not have double-glazed?
Past continuous
would I not have been double-glazing? would you not have been double-glazing? would he not have been double-glazing? would we not have been double-glazing? would you not have been double-glazing? would they not have been double-glazing?