don't I burr? don't you burr? doesn't she burr? don't we burr? don't you burr? don't they burr?
Presente continuo
am I not burring? aren't you burring? isn't she burring? aren't we burring? aren't you burring? aren't they burring?
Pretérito
didn't I burr? didn't you burr? didn't she burr? didn't we burr? didn't you burr? didn't they burr?
Pretérito continuo
wasn't I burring? weren't you burring? wasn't she burring? weren't we burring? weren't you burring? weren't they burring?
Presente perfecto
haven't I burred? haven't you burred? hasn't she burred? haven't we burred? haven't you burred? haven't they burred?
Presente perfecto continuo
haven't I been burring? haven't you been burring? hasn't she been burring? haven't we been burring? haven't you been burring? haven't they been burring?
Pluscuamperfecto
hadn't I burred? hadn't you burred? hadn't she burred? hadn't we burred? hadn't you burred? hadn't they burred?
Pluscuamperfecto continuo
hadn't I been burring? hadn't you been burring? hadn't she been burring? hadn't we been burring? hadn't you been burring? hadn't they been burring?
Futuro simple
won't I burr? won't you burr? won't she burr? won't we burr? won't you burr? won't they burr?
Futuro continuo
won't I be burring? won't you be burring? won't she be burring? won't we be burring? won't you be burring? won't they be burring?
Futuro perfecto
won't I have burred? won't you have burred? won't she have burred? won't we have burred? won't you have burred? won't they have burred?
Futuro perfecto contínuo
won't I have been burring? won't you have been burring? won't she have been burring? won't we have been burring? won't you have been burring? won't they have been burring?
Condicional
Presente
wouldn't I burr? wouldn't you burr? wouldn't she burr? wouldn't we burr? wouldn't you burr? wouldn't they burr?
Presente continuo
wouldn't I be burring? wouldn't you be burring? wouldn't she be burring? wouldn't we be burring? wouldn't you be burring? wouldn't they be burring?
Passado
wouldn't I have burred? wouldn't you have burred? wouldn't she have burred? wouldn't we have burred? wouldn't you have burred? wouldn't they have burred?
Passado continuo
wouldn't I have been burring? wouldn't you have been burring? wouldn't she have been burring? wouldn't we have been burring? wouldn't you have been burring? wouldn't they have been burring?