I could congress you could congress he could congress we could congress you could congress they could congress
Forma con V-ing
I could be congressing you could be congressing he could be congressing we could be congressing you could be congressing they could be congressing
Perfecto
I could have congressed you could have congressed he could have congressed we could have congressed you could have congressed they could have congressed
Perfecto con V-ing
I could have been congressing you could have been congressing he could have been congressing we could have been congressing you could have been congressing they could have been congressing
Negación
Forma simple
I couldn't congress you couldn't congress he couldn't congress we couldn't congress you couldn't congress they couldn't congress
Forma con V-ing
I couldn't be congressing you couldn't be congressing he couldn't be congressing we couldn't be congressing you couldn't be congressing they couldn't be congressing
Perfecto
I couldn't have congressed you couldn't have congressed he couldn't have congressed we couldn't have congressed you couldn't have congressed they couldn't have congressed
Perfecto con V-ing
I couldn't have been congressing you couldn't have been congressing he couldn't have been congressing we couldn't have been congressing you couldn't have been congressing they couldn't have been congressing
Forma interrogativa
Forma simple
could I congress? could you congress? could he congress? could we congress? could you congress? could they congress?
Forma con V-ing
could I be congressing? could you be congressing? could he be congressing? could we be congressing? could you be congressing? could they be congressing?
Perfecto
could I have congressed? could you have congressed? could he have congressed? could we have congressed? could you have congressed? could they have congressed?
Perfecto con V-ing
could I have been congressing? could you have been congressing? could he have been congressing? could we have been congressing? could you have been congressing? could they have been congressing?
Forma interro-negativa
Forma simple
couldn't I congress? couldn't you congress? couldn't he congress? couldn't we congress? couldn't you congress? couldn't they congress?
Forma con V-ing
couldn't I be congressing? couldn't you be congressing? couldn't he be congressing? couldn't we be congressing? couldn't you be congressing? couldn't they be congressing?
Perfecto
couldn't I have congressed? couldn't you have congressed? couldn't he have congressed? couldn't we have congressed? couldn't you have congressed? couldn't they have congressed?
Perfecto con V-ing
couldn't I have been congressing? couldn't you have been congressing? couldn't he have been congressing? couldn't we have been congressing? couldn't you have been congressing? couldn't they have been congressing?