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