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