I could struggle you could struggle she could struggle we could struggle you could struggle they could struggle
Forma com V-ing
I could be struggling you could be struggling she could be struggling we could be struggling you could be struggling they could be struggling
Perfeito
I could have struggled you could have struggled she could have struggled we could have struggled you could have struggled they could have struggled
Perfeito com V-ing
I could have been struggling you could have been struggling she could have been struggling we could have been struggling you could have been struggling they could have been struggling
Negação
Forma simple
I could not struggle you could not struggle she could not struggle we could not struggle you could not struggle they could not struggle
Forma com V-ing
I could not be struggling you could not be struggling she could not be struggling we could not be struggling you could not be struggling they could not be struggling
Perfeito
I could not have struggled you could not have struggled she could not have struggled we could not have struggled you could not have struggled they could not have struggled
Perfeito com V-ing
I could not have been struggling you could not have been struggling she could not have been struggling we could not have been struggling you could not have been struggling they could not have been struggling
Forma interrogativa
Forma simple
could I struggle? could you struggle? could she struggle? could we struggle? could you struggle? could they struggle?
Forma com V-ing
could I be struggling? could you be struggling? could she be struggling? could we be struggling? could you be struggling? could they be struggling?
Perfeito
could I have struggled? could you have struggled? could she have struggled? could we have struggled? could you have struggled? could they have struggled?
Perfeito com V-ing
could I have been struggling? could you have been struggling? could she have been struggling? could we have been struggling? could you have been struggling? could they have been struggling?
Forma interro-Negação
Forma simple
could I not struggle? could you not struggle? could she not struggle? could we not struggle? could you not struggle? could they not struggle?
Forma com V-ing
could I not be struggling? could you not be struggling? could she not be struggling? could we not be struggling? could you not be struggling? could they not be struggling?
Perfeito
could I not have struggled? could you not have struggled? could she not have struggled? could we not have struggled? could you not have struggled? could they not have struggled?
Perfeito com V-ing
could I not have been struggling? could you not have been struggling? could she not have been struggling? could we not have been struggling? could you not have been struggling? could they not have been struggling?