I could blaze you could blaze he could blaze we could blaze you could blaze they could blaze
V-ing form
I could be blazing you could be blazing he could be blazing we could be blazing you could be blazing they could be blazing
Perfect
I could have blazed you could have blazed he could have blazed we could have blazed you could have blazed they could have blazed
V-ing perfect
I could have been blazing you could have been blazing he could have been blazing we could have been blazing you could have been blazing they could have been blazing
Negation
Simple form
I could not blaze you could not blaze he could not blaze we could not blaze you could not blaze they could not blaze
V-ing form
I could not be blazing you could not be blazing he could not be blazing we could not be blazing you could not be blazing they could not be blazing
Perfect
I could not have blazed you could not have blazed he could not have blazed we could not have blazed you could not have blazed they could not have blazed
V-ing perfect
I could not have been blazing you could not have been blazing he could not have been blazing we could not have been blazing you could not have been blazing they could not have been blazing
Interrogative form
Simple form
could I blaze? could you blaze? could he blaze? could we blaze? could you blaze? could they blaze?
V-ing form
could I be blazing? could you be blazing? could he be blazing? could we be blazing? could you be blazing? could they be blazing?
Perfect
could I have blazed? could you have blazed? could he have blazed? could we have blazed? could you have blazed? could they have blazed?
V-ing perfect
could I have been blazing? could you have been blazing? could he have been blazing? could we have been blazing? could you have been blazing? could they have been blazing?
Interro-negative form
Simple form
could I not blaze? could you not blaze? could he not blaze? could we not blaze? could you not blaze? could they not blaze?
V-ing form
could I not be blazing? could you not be blazing? could he not be blazing? could we not be blazing? could you not be blazing? could they not be blazing?
Perfect
could I not have blazed? could you not have blazed? could he not have blazed? could we not have blazed? could you not have blazed? could they not have blazed?
V-ing perfect
could I not have been blazing? could you not have been blazing? could he not have been blazing? could we not have been blazing? could you not have been blazing? could they not have been blazing?