I could sour you could sour she could sour we could sour you could sour they could sour
Forma com V-ing
I could be souring you could be souring she could be souring we could be souring you could be souring they could be souring
Perfeito
I could have soured you could have soured she could have soured we could have soured you could have soured they could have soured
Perfeito com V-ing
I could have been souring you could have been souring she could have been souring we could have been souring you could have been souring they could have been souring
Negação
Forma simple
I couldn't sour you couldn't sour she couldn't sour we couldn't sour you couldn't sour they couldn't sour
Forma com V-ing
I couldn't be souring you couldn't be souring she couldn't be souring we couldn't be souring you couldn't be souring they couldn't be souring
Perfeito
I couldn't have soured you couldn't have soured she couldn't have soured we couldn't have soured you couldn't have soured they couldn't have soured
Perfeito com V-ing
I couldn't have been souring you couldn't have been souring she couldn't have been souring we couldn't have been souring you couldn't have been souring they couldn't have been souring
Forma interrogativa
Forma simple
could I sour? could you sour? could she sour? could we sour? could you sour? could they sour?
Forma com V-ing
could I be souring? could you be souring? could she be souring? could we be souring? could you be souring? could they be souring?
Perfeito
could I have soured? could you have soured? could she have soured? could we have soured? could you have soured? could they have soured?
Perfeito com V-ing
could I have been souring? could you have been souring? could she have been souring? could we have been souring? could you have been souring? could they have been souring?
Forma interro-Negação
Forma simple
couldn't I sour? couldn't you sour? couldn't she sour? couldn't we sour? couldn't you sour? couldn't they sour?
Forma com V-ing
couldn't I be souring? couldn't you be souring? couldn't she be souring? couldn't we be souring? couldn't you be souring? couldn't they be souring?
Perfeito
couldn't I have soured? couldn't you have soured? couldn't she have soured? couldn't we have soured? couldn't you have soured? couldn't they have soured?
Perfeito com V-ing
couldn't I have been souring? couldn't you have been souring? couldn't she have been souring? couldn't we have been souring? couldn't you have been souring? couldn't they have been souring?