I could well you could well he could well we could well you could well they could well
Forma com V-ing
I could be welling you could be welling he could be welling we could be welling you could be welling they could be welling
Perfeito
I could have welled you could have welled he could have welled we could have welled you could have welled they could have welled
Perfeito com V-ing
I could have been welling you could have been welling he could have been welling we could have been welling you could have been welling they could have been welling
Negação
Forma simple
I couldn't well you couldn't well he couldn't well we couldn't well you couldn't well they couldn't well
Forma com V-ing
I couldn't be welling you couldn't be welling he couldn't be welling we couldn't be welling you couldn't be welling they couldn't be welling
Perfeito
I couldn't have welled you couldn't have welled he couldn't have welled we couldn't have welled you couldn't have welled they couldn't have welled
Perfeito com V-ing
I couldn't have been welling you couldn't have been welling he couldn't have been welling we couldn't have been welling you couldn't have been welling they couldn't have been welling
Forma interrogativa
Forma simple
could I well? could you well? could he well? could we well? could you well? could they well?
Forma com V-ing
could I be welling? could you be welling? could he be welling? could we be welling? could you be welling? could they be welling?
Perfeito
could I have welled? could you have welled? could he have welled? could we have welled? could you have welled? could they have welled?
Perfeito com V-ing
could I have been welling? could you have been welling? could he have been welling? could we have been welling? could you have been welling? could they have been welling?
Forma interro-Negação
Forma simple
couldn't I well? couldn't you well? couldn't he well? couldn't we well? couldn't you well? couldn't they well?
Forma com V-ing
couldn't I be welling? couldn't you be welling? couldn't he be welling? couldn't we be welling? couldn't you be welling? couldn't they be welling?
Perfeito
couldn't I have welled? couldn't you have welled? couldn't he have welled? couldn't we have welled? couldn't you have welled? couldn't they have welled?
Perfeito com V-ing
couldn't I have been welling? couldn't you have been welling? couldn't he have been welling? couldn't we have been welling? couldn't you have been welling? couldn't they have been welling?