English verb conjugation
COULD ROAST

Regular verb: roast - roasted - roasted

Affirmation

Simple form	V-ing form
I could roast you could roast he could roast we could roast you could roast they could roast	I could be roasting you could be roasting he could be roasting we could be roasting you could be roasting they could be roasting
Perfect	V-ing perfect
I could have roasted you could have roasted he could have roasted we could have roasted you could have roasted they could have roasted	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

Negation

Simple form	V-ing form
I could not roast you could not roast he could not roast we could not roast you could not roast they could not roast	I could not be roasting you could not be roasting he could not be roasting we could not be roasting you could not be roasting they could not be roasting
Perfect	V-ing perfect
I could not have roasted you could not have roasted he could not have roasted we could not have roasted you could not have roasted they could not have roasted	I could not have been roasting you could not have been roasting he could not have been roasting we could not have been roasting you could not have been roasting they could not have been roasting

Interrogative form

Simple form	V-ing form
could I roast? could you roast? could he roast? could we roast? could you roast? could they roast?	could I be roasting? could you be roasting? could he be roasting? could we be roasting? could you be roasting? could they be roasting?
Perfect	V-ing perfect
could I have roasted? could you have roasted? could he have roasted? could we have roasted? could you have roasted? could they have roasted?	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?

Interro-negative form

Simple form	V-ing form
could I not roast? could you not roast? could he not roast? could we not roast? could you not roast? could they not roast?	could I not be roasting? could you not be roasting? could he not be roasting? could we not be roasting? could you not be roasting? could they not be roasting?
Perfect	V-ing perfect
could I not have roasted? could you not have roasted? could he not have roasted? could we not have roasted? could you not have roasted? could they not have roasted?	could I not have been roasting? could you not have been roasting? could he not have been roasting? could we not have been roasting? could you not have been roasting? could they not have been roasting?