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