I could pass you could pass he could pass we could pass you could pass they could pass
Forma com V-ing
I could be passing you could be passing he could be passing we could be passing you could be passing they could be passing
Perfeito
I could have passed you could have passed he could have passed we could have passed you could have passed they could have passed
Perfeito com V-ing
I could have been passing you could have been passing he could have been passing we could have been passing you could have been passing they could have been passing
Negação
Forma simple
I couldn't pass you couldn't pass he couldn't pass we couldn't pass you couldn't pass they couldn't pass
Forma com V-ing
I couldn't be passing you couldn't be passing he couldn't be passing we couldn't be passing you couldn't be passing they couldn't be passing
Perfeito
I couldn't have passed you couldn't have passed he couldn't have passed we couldn't have passed you couldn't have passed they couldn't have passed
Perfeito com V-ing
I couldn't have been passing you couldn't have been passing he couldn't have been passing we couldn't have been passing you couldn't have been passing they couldn't have been passing
Forma interrogativa
Forma simple
could I pass? could you pass? could he pass? could we pass? could you pass? could they pass?
Forma com V-ing
could I be passing? could you be passing? could he be passing? could we be passing? could you be passing? could they be passing?
Perfeito
could I have passed? could you have passed? could he have passed? could we have passed? could you have passed? could they have passed?
Perfeito com V-ing
could I have been passing? could you have been passing? could he have been passing? could we have been passing? could you have been passing? could they have been passing?
Forma interro-Negação
Forma simple
couldn't I pass? couldn't you pass? couldn't he pass? couldn't we pass? couldn't you pass? couldn't they pass?
Forma com V-ing
couldn't I be passing? couldn't you be passing? couldn't he be passing? couldn't we be passing? couldn't you be passing? couldn't they be passing?
Perfeito
couldn't I have passed? couldn't you have passed? couldn't he have passed? couldn't we have passed? couldn't you have passed? couldn't they have passed?
Perfeito com V-ing
couldn't I have been passing? couldn't you have been passing? couldn't he have been passing? couldn't we have been passing? couldn't you have been passing? couldn't they have been passing?