I could degrease you could degrease she could degrease we could degrease you could degrease they could degrease
Forma com V-ing
I could be degreasing you could be degreasing she could be degreasing we could be degreasing you could be degreasing they could be degreasing
Perfeito
I could have degreased you could have degreased she could have degreased we could have degreased you could have degreased they could have degreased
Perfeito com V-ing
I could have been degreasing you could have been degreasing she could have been degreasing we could have been degreasing you could have been degreasing they could have been degreasing
Negação
Forma simple
I could not degrease you could not degrease she could not degrease we could not degrease you could not degrease they could not degrease
Forma com V-ing
I could not be degreasing you could not be degreasing she could not be degreasing we could not be degreasing you could not be degreasing they could not be degreasing
Perfeito
I could not have degreased you could not have degreased she could not have degreased we could not have degreased you could not have degreased they could not have degreased
Perfeito com V-ing
I could not have been degreasing you could not have been degreasing she could not have been degreasing we could not have been degreasing you could not have been degreasing they could not have been degreasing
Forma interrogativa
Forma simple
could I degrease? could you degrease? could she degrease? could we degrease? could you degrease? could they degrease?
Forma com V-ing
could I be degreasing? could you be degreasing? could she be degreasing? could we be degreasing? could you be degreasing? could they be degreasing?
Perfeito
could I have degreased? could you have degreased? could she have degreased? could we have degreased? could you have degreased? could they have degreased?
Perfeito com V-ing
could I have been degreasing? could you have been degreasing? could she have been degreasing? could we have been degreasing? could you have been degreasing? could they have been degreasing?
Forma interro-Negação
Forma simple
could I not degrease? could you not degrease? could she not degrease? could we not degrease? could you not degrease? could they not degrease?
Forma com V-ing
could I not be degreasing? could you not be degreasing? could she not be degreasing? could we not be degreasing? could you not be degreasing? could they not be degreasing?
Perfeito
could I not have degreased? could you not have degreased? could she not have degreased? could we not have degreased? could you not have degreased? could they not have degreased?
Perfeito com V-ing
could I not have been degreasing? could you not have been degreasing? could she not have been degreasing? could we not have been degreasing? could you not have been degreasing? could they not have been degreasing?