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