I could glaze you could glaze he could glaze we could glaze you could glaze they could glaze
V-ing form
I could be glazing you could be glazing he could be glazing we could be glazing you could be glazing they could be glazing
Perfect
I could have glazed you could have glazed he could have glazed we could have glazed you could have glazed they could have glazed
V-ing perfect
I could have been glazing you could have been glazing he could have been glazing we could have been glazing you could have been glazing they could have been glazing
Negation
Simple form
I could not glaze you could not glaze he could not glaze we could not glaze you could not glaze they could not glaze
V-ing form
I could not be glazing you could not be glazing he could not be glazing we could not be glazing you could not be glazing they could not be glazing
Perfect
I could not have glazed you could not have glazed he could not have glazed we could not have glazed you could not have glazed they could not have glazed
V-ing perfect
I could not have been glazing you could not have been glazing he could not have been glazing we could not have been glazing you could not have been glazing they could not have been glazing
Interrogative form
Simple form
could I glaze? could you glaze? could he glaze? could we glaze? could you glaze? could they glaze?
V-ing form
could I be glazing? could you be glazing? could he be glazing? could we be glazing? could you be glazing? could they be glazing?
Perfect
could I have glazed? could you have glazed? could he have glazed? could we have glazed? could you have glazed? could they have glazed?
V-ing perfect
could I have been glazing? could you have been glazing? could he have been glazing? could we have been glazing? could you have been glazing? could they have been glazing?
Interro-negative form
Simple form
could I not glaze? could you not glaze? could he not glaze? could we not glaze? could you not glaze? could they not glaze?
V-ing form
could I not be glazing? could you not be glazing? could he not be glazing? could we not be glazing? could you not be glazing? could they not be glazing?
Perfect
could I not have glazed? could you not have glazed? could he not have glazed? could we not have glazed? could you not have glazed? could they not have glazed?
V-ing perfect
could I not have been glazing? could you not have been glazing? could he not have been glazing? could we not have been glazing? could you not have been glazing? could they not have been glazing?