I can authorize you can authorize she can authorize we can authorize you can authorize they can authorize
V-ing form
I can be authorizing you can be authorizing she can be authorizing we can be authorizing you can be authorizing they can be authorizing
Perfect
I can have authorized you can have authorized she 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 she can have been authorizing we can have been authorizing you can have been authorizing they can have been authorizing
Negation
Simple form
I can't authorize you can't authorize she can't authorize we can't authorize you can't authorize they can't authorize
V-ing form
I can't be authorizing you can't be authorizing she can't be authorizing we can't be authorizing you can't be authorizing they can't be authorizing
Perfect
I can't have authorized you can't have authorized she can't have authorized we can't have authorized you can't have authorized they can't have authorized
V-ing perfect
I can't have been authorizing you can't have been authorizing she can't have been authorizing we can't have been authorizing you can't have been authorizing they can't have been authorizing
Interrogative form
Simple form
can I authorize? can you authorize? can she authorize? can we authorize? can you authorize? can they authorize?
V-ing form
can I be authorizing? can you be authorizing? can she be authorizing? can we be authorizing? can you be authorizing? can they be authorizing?
Perfect
can I have authorized? can you have authorized? can she 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 she have been authorizing? can we have been authorizing? can you have been authorizing? can they have been authorizing?
Interro-negative form
Simple form
can't I authorize? can't you authorize? can't she authorize? can't we authorize? can't you authorize? can't they authorize?
V-ing form
can't I be authorizing? can't you be authorizing? can't she be authorizing? can't we be authorizing? can't you be authorizing? can't they be authorizing?
Perfect
can't I have authorized? can't you have authorized? can't she have authorized? can't we have authorized? can't you have authorized? can't they have authorized?
V-ing perfect
can't I have been authorizing? can't you have been authorizing? can't she have been authorizing? can't we have been authorizing? can't you have been authorizing? can't they have been authorizing?