don't I conceal? don't you conceal? doesn't he conceal? don't we conceal? don't you conceal? don't they conceal?
Present continuous
am I not concealing? aren't you concealing? isn't he concealing? aren't we concealing? aren't you concealing? aren't they concealing?
Preterite
didn't I conceal? didn't you conceal? didn't he conceal? didn't we conceal? didn't you conceal? didn't they conceal?
Preterite continuous
wasn't I concealing? weren't you concealing? wasn't he concealing? weren't we concealing? weren't you concealing? weren't they concealing?
Present perfect
haven't I concealed? haven't you concealed? hasn't he concealed? haven't we concealed? haven't you concealed? haven't they concealed?
Present perfect continuous
haven't I been concealing? haven't you been concealing? hasn't he been concealing? haven't we been concealing? haven't you been concealing? haven't they been concealing?
Pluperfect
hadn't I concealed? hadn't you concealed? hadn't he concealed? hadn't we concealed? hadn't you concealed? hadn't they concealed?
Pluperfect continuous
hadn't I been concealing? hadn't you been concealing? hadn't he been concealing? hadn't we been concealing? hadn't you been concealing? hadn't they been concealing?
Future
won't I conceal? won't you conceal? won't he conceal? won't we conceal? won't you conceal? won't they conceal?
Future continuous
won't I be concealing? won't you be concealing? won't he be concealing? won't we be concealing? won't you be concealing? won't they be concealing?
Future perfect
won't I have concealed? won't you have concealed? won't he have concealed? won't we have concealed? won't you have concealed? won't they have concealed?
Future perfect continuous
won't I have been concealing? won't you have been concealing? won't he have been concealing? won't we have been concealing? won't you have been concealing? won't they have been concealing?
Conditional
Present
wouldn't I conceal? wouldn't you conceal? wouldn't he conceal? wouldn't we conceal? wouldn't you conceal? wouldn't they conceal?
Present continuous
wouldn't I be concealing? wouldn't you be concealing? wouldn't he be concealing? wouldn't we be concealing? wouldn't you be concealing? wouldn't they be concealing?
Past
wouldn't I have concealed? wouldn't you have concealed? wouldn't he have concealed? wouldn't we have concealed? wouldn't you have concealed? wouldn't they have concealed?
Past continuous
wouldn't I have been concealing? wouldn't you have been concealing? wouldn't he have been concealing? wouldn't we have been concealing? wouldn't you have been concealing? wouldn't they have been concealing?