I could blast you could blast he could blast we could blast you could blast they could blast
V-ing form
I could be blasting you could be blasting he could be blasting we could be blasting you could be blasting they could be blasting
Perfect
I could have blasted you could have blasted he could have blasted we could have blasted you could have blasted they could have blasted
V-ing perfect
I could have been blasting you could have been blasting he could have been blasting we could have been blasting you could have been blasting they could have been blasting
Negation
Simple form
I could not blast you could not blast he could not blast we could not blast you could not blast they could not blast
V-ing form
I could not be blasting you could not be blasting he could not be blasting we could not be blasting you could not be blasting they could not be blasting
Perfect
I could not have blasted you could not have blasted he could not have blasted we could not have blasted you could not have blasted they could not have blasted
V-ing perfect
I could not have been blasting you could not have been blasting he could not have been blasting we could not have been blasting you could not have been blasting they could not have been blasting
Interrogative form
Simple form
could I blast? could you blast? could he blast? could we blast? could you blast? could they blast?
V-ing form
could I be blasting? could you be blasting? could he be blasting? could we be blasting? could you be blasting? could they be blasting?
Perfect
could I have blasted? could you have blasted? could he have blasted? could we have blasted? could you have blasted? could they have blasted?
V-ing perfect
could I have been blasting? could you have been blasting? could he have been blasting? could we have been blasting? could you have been blasting? could they have been blasting?
Interro-negative form
Simple form
could I not blast? could you not blast? could he not blast? could we not blast? could you not blast? could they not blast?
V-ing form
could I not be blasting? could you not be blasting? could he not be blasting? could we not be blasting? could you not be blasting? could they not be blasting?
Perfect
could I not have blasted? could you not have blasted? could he not have blasted? could we not have blasted? could you not have blasted? could they not have blasted?
V-ing perfect
could I not have been blasting? could you not have been blasting? could he not have been blasting? could we not have been blasting? could you not have been blasting? could they not have been blasting?