I could busy you could busy he could busy we could busy you could busy they could busy
Forma con V-ing
I could be busying you could be busying he could be busying we could be busying you could be busying they could be busying
Perfecto
I could have busied you could have busied he could have busied we could have busied you could have busied they could have busied
Perfecto con V-ing
I could have been busying you could have been busying he could have been busying we could have been busying you could have been busying they could have been busying
Negación
Forma simple
I couldn't busy you couldn't busy he couldn't busy we couldn't busy you couldn't busy they couldn't busy
Forma con V-ing
I couldn't be busying you couldn't be busying he couldn't be busying we couldn't be busying you couldn't be busying they couldn't be busying
Perfecto
I couldn't have busied you couldn't have busied he couldn't have busied we couldn't have busied you couldn't have busied they couldn't have busied
Perfecto con V-ing
I couldn't have been busying you couldn't have been busying he couldn't have been busying we couldn't have been busying you couldn't have been busying they couldn't have been busying
Forma interrogativa
Forma simple
could I busy? could you busy? could he busy? could we busy? could you busy? could they busy?
Forma con V-ing
could I be busying? could you be busying? could he be busying? could we be busying? could you be busying? could they be busying?
Perfecto
could I have busied? could you have busied? could he have busied? could we have busied? could you have busied? could they have busied?
Perfecto con V-ing
could I have been busying? could you have been busying? could he have been busying? could we have been busying? could you have been busying? could they have been busying?
Forma interro-negativa
Forma simple
couldn't I busy? couldn't you busy? couldn't he busy? couldn't we busy? couldn't you busy? couldn't they busy?
Forma con V-ing
couldn't I be busying? couldn't you be busying? couldn't he be busying? couldn't we be busying? couldn't you be busying? couldn't they be busying?
Perfecto
couldn't I have busied? couldn't you have busied? couldn't he have busied? couldn't we have busied? couldn't you have busied? couldn't they have busied?
Perfecto con V-ing
couldn't I have been busying? couldn't you have been busying? couldn't he have been busying? couldn't we have been busying? couldn't you have been busying? couldn't they have been busying?