I can glimpse you can glimpse he can glimpse we can glimpse you can glimpse they can glimpse
V-ing form
I can be glimpsing you can be glimpsing he can be glimpsing we can be glimpsing you can be glimpsing they can be glimpsing
Perfect
I can have glimpsed you can have glimpsed he can have glimpsed we can have glimpsed you can have glimpsed they can have glimpsed
V-ing perfect
I can have been glimpsing you can have been glimpsing he can have been glimpsing we can have been glimpsing you can have been glimpsing they can have been glimpsing
Negation
Simple form
I cannot glimpse you cannot glimpse he cannot glimpse we cannot glimpse you cannot glimpse they cannot glimpse
V-ing form
I cannot be glimpsing you cannot be glimpsing he cannot be glimpsing we cannot be glimpsing you cannot be glimpsing they cannot be glimpsing
Perfect
I cannot have glimpsed you cannot have glimpsed he cannot have glimpsed we cannot have glimpsed you cannot have glimpsed they cannot have glimpsed
V-ing perfect
I cannot have been glimpsing you cannot have been glimpsing he cannot have been glimpsing we cannot have been glimpsing you cannot have been glimpsing they cannot have been glimpsing
Interrogative form
Simple form
can I glimpse? can you glimpse? can he glimpse? can we glimpse? can you glimpse? can they glimpse?
V-ing form
can I be glimpsing? can you be glimpsing? can he be glimpsing? can we be glimpsing? can you be glimpsing? can they be glimpsing?
Perfect
can I have glimpsed? can you have glimpsed? can he have glimpsed? can we have glimpsed? can you have glimpsed? can they have glimpsed?
V-ing perfect
can I have been glimpsing? can you have been glimpsing? can he have been glimpsing? can we have been glimpsing? can you have been glimpsing? can they have been glimpsing?
Interro-negative form
Simple form
can I not glimpse? can you not glimpse? can he not glimpse? can we not glimpse? can you not glimpse? can they not glimpse?
V-ing form
can I not be glimpsing? can you not be glimpsing? can he not be glimpsing? can we not be glimpsing? can you not be glimpsing? can they not be glimpsing?
Perfect
can I not have glimpsed? can you not have glimpsed? can he not have glimpsed? can we not have glimpsed? can you not have glimpsed? can they not have glimpsed?
V-ing perfect
can I not have been glimpsing? can you not have been glimpsing? can he not have been glimpsing? can we not have been glimpsing? can you not have been glimpsing? can they not have been glimpsing?