I could mat you could mat she could mat we could mat you could mat they could mat
Forma con V-ing
I could be matting you could be matting she could be matting we could be matting you could be matting they could be matting
Perfecto
I could have matted you could have matted she could have matted we could have matted you could have matted they could have matted
Perfecto con V-ing
I could have been matting you could have been matting she could have been matting we could have been matting you could have been matting they could have been matting
Negación
Forma simple
I couldn't mat you couldn't mat she couldn't mat we couldn't mat you couldn't mat they couldn't mat
Forma con V-ing
I couldn't be matting you couldn't be matting she couldn't be matting we couldn't be matting you couldn't be matting they couldn't be matting
Perfecto
I couldn't have matted you couldn't have matted she couldn't have matted we couldn't have matted you couldn't have matted they couldn't have matted
Perfecto con V-ing
I couldn't have been matting you couldn't have been matting she couldn't have been matting we couldn't have been matting you couldn't have been matting they couldn't have been matting
Forma interrogativa
Forma simple
could I mat? could you mat? could she mat? could we mat? could you mat? could they mat?
Forma con V-ing
could I be matting? could you be matting? could she be matting? could we be matting? could you be matting? could they be matting?
Perfecto
could I have matted? could you have matted? could she have matted? could we have matted? could you have matted? could they have matted?
Perfecto con V-ing
could I have been matting? could you have been matting? could she have been matting? could we have been matting? could you have been matting? could they have been matting?
Forma interro-negativa
Forma simple
couldn't I mat? couldn't you mat? couldn't she mat? couldn't we mat? couldn't you mat? couldn't they mat?
Forma con V-ing
couldn't I be matting? couldn't you be matting? couldn't she be matting? couldn't we be matting? couldn't you be matting? couldn't they be matting?
Perfecto
couldn't I have matted? couldn't you have matted? couldn't she have matted? couldn't we have matted? couldn't you have matted? couldn't they have matted?
Perfecto con V-ing
couldn't I have been matting? couldn't you have been matting? couldn't she have been matting? couldn't we have been matting? couldn't you have been matting? couldn't they have been matting?