don't I burr? don't you burr? doesn't he burr? don't we burr? don't you burr? don't they burr?
Presente contínuo
am I not burring? aren't you burring? isn't he burring? aren't we burring? aren't you burring? aren't they burring?
Pretérito
didn't I burr? didn't you burr? didn't he burr? didn't we burr? didn't you burr? didn't they burr?
Preterito contínuo
wasn't I burring? weren't you burring? wasn't he burring? weren't we burring? weren't you burring? weren't they burring?
Presente perfeito
haven't I burred? haven't you burred? hasn't he burred? haven't we burred? haven't you burred? haven't they burred?
Presente perfeito contínuo
haven't I been burring? haven't you been burring? hasn't he been burring? haven't we been burring? haven't you been burring? haven't they been burring?
Mais perfeito
hadn't I burred? hadn't you burred? hadn't he burred? hadn't we burred? hadn't you burred? hadn't they burred?
Contínuo mais perfeito
hadn't I been burring? hadn't you been burring? hadn't he been burring? hadn't we been burring? hadn't you been burring? hadn't they been burring?
Futuro
won't I burr? won't you burr? won't he burr? won't we burr? won't you burr? won't they burr?
Futuro contínuo
won't I be burring? won't you be burring? won't he be burring? won't we be burring? won't you be burring? won't they be burring?
futuro perfeito
won't I have burred? won't you have burred? won't he have burred? won't we have burred? won't you have burred? won't they have burred?
futuro perfeito contínuo
won't I have been burring? won't you have been burring? won't he 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 he burr? wouldn't we burr? wouldn't you burr? wouldn't they burr?
Presente contínuo
wouldn't I be burring? wouldn't you be burring? wouldn't he 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 he have burred? wouldn't we have burred? wouldn't you have burred? wouldn't they have burred?
Passado contínuo
wouldn't I have been burring? wouldn't you have been burring? wouldn't he have been burring? wouldn't we have been burring? wouldn't you have been burring? wouldn't they have been burring?