English verb conjugation
COULD BLAST

Regular verb: blast - blasted - blasted

Affirmation

Simple form	V-ing form
I could blast you could blast she could blast we could blast you could blast they could blast	I could be blasting you could be blasting she could be blasting we could be blasting you could be blasting they could be blasting
Perfect	V-ing perfect
I could have blasted you could have blasted she could have blasted we could have blasted you could have blasted they could have blasted	I could have been blasting you could have been blasting she could have been blasting we could have been blasting you could have been blasting they could have been blasting

Negation

Simple form	V-ing form
I couldn't blast you couldn't blast she couldn't blast we couldn't blast you couldn't blast they couldn't blast	I couldn't be blasting you couldn't be blasting she couldn't be blasting we couldn't be blasting you couldn't be blasting they couldn't be blasting
Perfect	V-ing perfect
I couldn't have blasted you couldn't have blasted she couldn't have blasted we couldn't have blasted you couldn't have blasted they couldn't have blasted	I couldn't have been blasting you couldn't have been blasting she couldn't have been blasting we couldn't have been blasting you couldn't have been blasting they couldn't have been blasting

Interrogative form

Simple form	V-ing form
could I blast? could you blast? could she blast? could we blast? could you blast? could they blast?	could I be blasting? could you be blasting? could she be blasting? could we be blasting? could you be blasting? could they be blasting?
Perfect	V-ing perfect
could I have blasted? could you have blasted? could she have blasted? could we have blasted? could you have blasted? could they have blasted?	could I have been blasting? could you have been blasting? could she have been blasting? could we have been blasting? could you have been blasting? could they have been blasting?

Interro-negative form

Simple form	V-ing form
couldn't I blast? couldn't you blast? couldn't she blast? couldn't we blast? couldn't you blast? couldn't they blast?	couldn't I be blasting? couldn't you be blasting? couldn't she be blasting? couldn't we be blasting? couldn't you be blasting? couldn't they be blasting?
Perfect	V-ing perfect
couldn't I have blasted? couldn't you have blasted? couldn't she have blasted? couldn't we have blasted? couldn't you have blasted? couldn't they have blasted?	couldn't I have been blasting? couldn't you have been blasting? couldn't she have been blasting? couldn't we have been blasting? couldn't you have been blasting? couldn't they have been blasting?