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