I can authorize you can authorize he can authorize we can authorize you can authorize they can authorize
V-ing form
I can be authorizing you can be authorizing he can be authorizing we can be authorizing you can be authorizing they can be authorizing
Perfect
I can have authorized you can have authorized he can have authorized we can have authorized you can have authorized they can have authorized
V-ing perfect
I can have been authorizing you can have been authorizing he can have been authorizing we can have been authorizing you can have been authorizing they can have been authorizing
Negation
Simple form
I cannot authorize you cannot authorize he cannot authorize we cannot authorize you cannot authorize they cannot authorize
V-ing form
I cannot be authorizing you cannot be authorizing he cannot be authorizing we cannot be authorizing you cannot be authorizing they cannot be authorizing
Perfect
I cannot have authorized you cannot have authorized he cannot have authorized we cannot have authorized you cannot have authorized they cannot have authorized
V-ing perfect
I cannot have been authorizing you cannot have been authorizing he cannot have been authorizing we cannot have been authorizing you cannot have been authorizing they cannot have been authorizing
Interrogative form
Simple form
can I authorize? can you authorize? can he authorize? can we authorize? can you authorize? can they authorize?
V-ing form
can I be authorizing? can you be authorizing? can he be authorizing? can we be authorizing? can you be authorizing? can they be authorizing?
Perfect
can I have authorized? can you have authorized? can he have authorized? can we have authorized? can you have authorized? can they have authorized?
V-ing perfect
can I have been authorizing? can you have been authorizing? can he have been authorizing? can we have been authorizing? can you have been authorizing? can they have been authorizing?
Interro-negative form
Simple form
can I not authorize? can you not authorize? can he not authorize? can we not authorize? can you not authorize? can they not authorize?
V-ing form
can I not be authorizing? can you not be authorizing? can he not be authorizing? can we not be authorizing? can you not be authorizing? can they not be authorizing?
Perfect
can I not have authorized? can you not have authorized? can he not have authorized? can we not have authorized? can you not have authorized? can they not have authorized?
V-ing perfect
can I not have been authorizing? can you not have been authorizing? can he not have been authorizing? can we not have been authorizing? can you not have been authorizing? can they not have been authorizing?