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