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