I could gaze you could gaze he could gaze we could gaze you could gaze they could gaze
V-ing form
I could be gazing you could be gazing he could be gazing we could be gazing you could be gazing they could be gazing
Perfect
I could have gazed you could have gazed he could have gazed we could have gazed you could have gazed they could have gazed
V-ing perfect
I could have been gazing you could have been gazing he could have been gazing we could have been gazing you could have been gazing they could have been gazing
Negation
Simple form
I could not gaze you could not gaze he could not gaze we could not gaze you could not gaze they could not gaze
V-ing form
I could not be gazing you could not be gazing he could not be gazing we could not be gazing you could not be gazing they could not be gazing
Perfect
I could not have gazed you could not have gazed he could not have gazed we could not have gazed you could not have gazed they could not have gazed
V-ing perfect
I could not have been gazing you could not have been gazing he could not have been gazing we could not have been gazing you could not have been gazing they could not have been gazing
Interrogative form
Simple form
could I gaze? could you gaze? could he gaze? could we gaze? could you gaze? could they gaze?
V-ing form
could I be gazing? could you be gazing? could he be gazing? could we be gazing? could you be gazing? could they be gazing?
Perfect
could I have gazed? could you have gazed? could he have gazed? could we have gazed? could you have gazed? could they have gazed?
V-ing perfect
could I have been gazing? could you have been gazing? could he have been gazing? could we have been gazing? could you have been gazing? could they have been gazing?
Interro-negative form
Simple form
could I not gaze? could you not gaze? could he not gaze? could we not gaze? could you not gaze? could they not gaze?
V-ing form
could I not be gazing? could you not be gazing? could he not be gazing? could we not be gazing? could you not be gazing? could they not be gazing?
Perfect
could I not have gazed? could you not have gazed? could he not have gazed? could we not have gazed? could you not have gazed? could they not have gazed?
V-ing perfect
could I not have been gazing? could you not have been gazing? could he not have been gazing? could we not have been gazing? could you not have been gazing? could they not have been gazing?