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