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