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