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