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