I could bus you could bus he could bus we could bus you could bus they could bus
Forma com V-ing
I could be bussing you could be bussing he could be bussing we could be bussing you could be bussing they could be bussing
Perfeito
I could have bussed you could have bussed he could have bussed we could have bussed you could have bussed they could have bussed
Perfeito com V-ing
I could have been bussing you could have been bussing he could have been bussing we could have been bussing you could have been bussing they could have been bussing
Negação
Forma simple
I couldn't bus you couldn't bus he couldn't bus we couldn't bus you couldn't bus they couldn't bus
Forma com V-ing
I couldn't be bussing you couldn't be bussing he couldn't be bussing we couldn't be bussing you couldn't be bussing they couldn't be bussing
Perfeito
I couldn't have bussed you couldn't have bussed he couldn't have bussed we couldn't have bussed you couldn't have bussed they couldn't have bussed
Perfeito com V-ing
I couldn't have been bussing you couldn't have been bussing he couldn't have been bussing we couldn't have been bussing you couldn't have been bussing they couldn't have been bussing
Forma interrogativa
Forma simple
could I bus? could you bus? could he bus? could we bus? could you bus? could they bus?
Forma com V-ing
could I be bussing? could you be bussing? could he be bussing? could we be bussing? could you be bussing? could they be bussing?
Perfeito
could I have bussed? could you have bussed? could he have bussed? could we have bussed? could you have bussed? could they have bussed?
Perfeito com V-ing
could I have been bussing? could you have been bussing? could he have been bussing? could we have been bussing? could you have been bussing? could they have been bussing?
Forma interro-Negação
Forma simple
couldn't I bus? couldn't you bus? couldn't he bus? couldn't we bus? couldn't you bus? couldn't they bus?
Forma com V-ing
couldn't I be bussing? couldn't you be bussing? couldn't he be bussing? couldn't we be bussing? couldn't you be bussing? couldn't they be bussing?
Perfeito
couldn't I have bussed? couldn't you have bussed? couldn't he have bussed? couldn't we have bussed? couldn't you have bussed? couldn't they have bussed?
Perfeito com V-ing
couldn't I have been bussing? couldn't you have been bussing? couldn't he have been bussing? couldn't we have been bussing? couldn't you have been bussing? couldn't they have been bussing?