I can institute you can institute he can institute we can institute you can institute they can institute
V-ing form
I can be instituting you can be instituting he can be instituting we can be instituting you can be instituting they can be instituting
Perfect
I can have instituted you can have instituted he can have instituted we can have instituted you can have instituted they can have instituted
V-ing perfect
I can have been instituting you can have been instituting he can have been instituting we can have been instituting you can have been instituting they can have been instituting
Negation
Simple form
I can't institute you can't institute he can't institute we can't institute you can't institute they can't institute
V-ing form
I can't be instituting you can't be instituting he can't be instituting we can't be instituting you can't be instituting they can't be instituting
Perfect
I can't have instituted you can't have instituted he can't have instituted we can't have instituted you can't have instituted they can't have instituted
V-ing perfect
I can't have been instituting you can't have been instituting he can't have been instituting we can't have been instituting you can't have been instituting they can't have been instituting
Interrogative form
Simple form
can I institute? can you institute? can he institute? can we institute? can you institute? can they institute?
V-ing form
can I be instituting? can you be instituting? can he be instituting? can we be instituting? can you be instituting? can they be instituting?
Perfect
can I have instituted? can you have instituted? can he have instituted? can we have instituted? can you have instituted? can they have instituted?
V-ing perfect
can I have been instituting? can you have been instituting? can he have been instituting? can we have been instituting? can you have been instituting? can they have been instituting?
Interro-negative form
Simple form
can't I institute? can't you institute? can't he institute? can't we institute? can't you institute? can't they institute?
V-ing form
can't I be instituting? can't you be instituting? can't he be instituting? can't we be instituting? can't you be instituting? can't they be instituting?
Perfect
can't I have instituted? can't you have instituted? can't he have instituted? can't we have instituted? can't you have instituted? can't they have instituted?
V-ing perfect
can't I have been instituting? can't you have been instituting? can't he have been instituting? can't we have been instituting? can't you have been instituting? can't they have been instituting?