I could drill you could drill she could drill we could drill you could drill they could drill
Forma com V-ing
I could be drilling you could be drilling she could be drilling we could be drilling you could be drilling they could be drilling
Perfeito
I could have drilled you could have drilled she could have drilled we could have drilled you could have drilled they could have drilled
Perfeito com V-ing
I could have been drilling you could have been drilling she could have been drilling we could have been drilling you could have been drilling they could have been drilling
Negação
Forma simple
I couldn't drill you couldn't drill she couldn't drill we couldn't drill you couldn't drill they couldn't drill
Forma com V-ing
I couldn't be drilling you couldn't be drilling she couldn't be drilling we couldn't be drilling you couldn't be drilling they couldn't be drilling
Perfeito
I couldn't have drilled you couldn't have drilled she couldn't have drilled we couldn't have drilled you couldn't have drilled they couldn't have drilled
Perfeito com V-ing
I couldn't have been drilling you couldn't have been drilling she couldn't have been drilling we couldn't have been drilling you couldn't have been drilling they couldn't have been drilling
Forma interrogativa
Forma simple
could I drill? could you drill? could she drill? could we drill? could you drill? could they drill?
Forma com V-ing
could I be drilling? could you be drilling? could she be drilling? could we be drilling? could you be drilling? could they be drilling?
Perfeito
could I have drilled? could you have drilled? could she have drilled? could we have drilled? could you have drilled? could they have drilled?
Perfeito com V-ing
could I have been drilling? could you have been drilling? could she have been drilling? could we have been drilling? could you have been drilling? could they have been drilling?
Forma interro-Negação
Forma simple
couldn't I drill? couldn't you drill? couldn't she drill? couldn't we drill? couldn't you drill? couldn't they drill?
Forma com V-ing
couldn't I be drilling? couldn't you be drilling? couldn't she be drilling? couldn't we be drilling? couldn't you be drilling? couldn't they be drilling?
Perfeito
couldn't I have drilled? couldn't you have drilled? couldn't she have drilled? couldn't we have drilled? couldn't you have drilled? couldn't they have drilled?
Perfeito com V-ing
couldn't I have been drilling? couldn't you have been drilling? couldn't she have been drilling? couldn't we have been drilling? couldn't you have been drilling? couldn't they have been drilling?