I could navigate you could navigate she could navigate we could navigate you could navigate they could navigate
Forma com V-ing
I could be navigating you could be navigating she could be navigating we could be navigating you could be navigating they could be navigating
Perfeito
I could have navigated you could have navigated she could have navigated we could have navigated you could have navigated they could have navigated
Perfeito com V-ing
I could have been navigating you could have been navigating she could have been navigating we could have been navigating you could have been navigating they could have been navigating
Negação
Forma simple
I could not navigate you could not navigate she could not navigate we could not navigate you could not navigate they could not navigate
Forma com V-ing
I could not be navigating you could not be navigating she could not be navigating we could not be navigating you could not be navigating they could not be navigating
Perfeito
I could not have navigated you could not have navigated she could not have navigated we could not have navigated you could not have navigated they could not have navigated
Perfeito com V-ing
I could not have been navigating you could not have been navigating she could not have been navigating we could not have been navigating you could not have been navigating they could not have been navigating
Forma interrogativa
Forma simple
could I navigate? could you navigate? could she navigate? could we navigate? could you navigate? could they navigate?
Forma com V-ing
could I be navigating? could you be navigating? could she be navigating? could we be navigating? could you be navigating? could they be navigating?
Perfeito
could I have navigated? could you have navigated? could she have navigated? could we have navigated? could you have navigated? could they have navigated?
Perfeito com V-ing
could I have been navigating? could you have been navigating? could she have been navigating? could we have been navigating? could you have been navigating? could they have been navigating?
Forma interro-Negação
Forma simple
could I not navigate? could you not navigate? could she not navigate? could we not navigate? could you not navigate? could they not navigate?
Forma com V-ing
could I not be navigating? could you not be navigating? could she not be navigating? could we not be navigating? could you not be navigating? could they not be navigating?
Perfeito
could I not have navigated? could you not have navigated? could she not have navigated? could we not have navigated? could you not have navigated? could they not have navigated?
Perfeito com V-ing
could I not have been navigating? could you not have been navigating? could she not have been navigating? could we not have been navigating? could you not have been navigating? could they not have been navigating?