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