I can own you can own he can own we can own you can own they can own
V-ing form
I can be owning you can be owning he can be owning we can be owning you can be owning they can be owning
Perfect
I can have owned you can have owned he can have owned we can have owned you can have owned they can have owned
V-ing perfect
I can have been owning you can have been owning he can have been owning we can have been owning you can have been owning they can have been owning
Negation
Simple form
I cannot own you cannot own he cannot own we cannot own you cannot own they cannot own
V-ing form
I cannot be owning you cannot be owning he cannot be owning we cannot be owning you cannot be owning they cannot be owning
Perfect
I cannot have owned you cannot have owned he cannot have owned we cannot have owned you cannot have owned they cannot have owned
V-ing perfect
I cannot have been owning you cannot have been owning he cannot have been owning we cannot have been owning you cannot have been owning they cannot have been owning
Interrogative form
Simple form
can I own? can you own? can he own? can we own? can you own? can they own?
V-ing form
can I be owning? can you be owning? can he be owning? can we be owning? can you be owning? can they be owning?
Perfect
can I have owned? can you have owned? can he have owned? can we have owned? can you have owned? can they have owned?
V-ing perfect
can I have been owning? can you have been owning? can he have been owning? can we have been owning? can you have been owning? can they have been owning?
Interro-negative form
Simple form
can I not own? can you not own? can he not own? can we not own? can you not own? can they not own?
V-ing form
can I not be owning? can you not be owning? can he not be owning? can we not be owning? can you not be owning? can they not be owning?
Perfect
can I not have owned? can you not have owned? can he not have owned? can we not have owned? can you not have owned? can they not have owned?
V-ing perfect
can I not have been owning? can you not have been owning? can he not have been owning? can we not have been owning? can you not have been owning? can they not have been owning?