I can institute you can institute she can institute we can institute you can institute they can institute
V-ing form
I can be instituting you can be instituting she can be instituting we can be instituting you can be instituting they can be instituting
Perfect
I can have instituted you can have instituted she 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 she 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 she 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 she 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 she 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 she 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 she institute? can we institute? can you institute? can they institute?
V-ing form
can I be instituting? can you be instituting? can she be instituting? can we be instituting? can you be instituting? can they be instituting?
Perfect
can I have instituted? can you have instituted? can she 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 she 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 she 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 she 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 she 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 she have been instituting? can't we have been instituting? can't you have been instituting? can't they have been instituting?