English verb conjugation
COULD AUTHORIZE

Regular verb: authorize - authorized - authorized

Affirmation

Simple form	V-ing form
I could authorize you could authorize he could authorize we could authorize you could authorize they could authorize	I could be authorizing you could be authorizing he could be authorizing we could be authorizing you could be authorizing they could be authorizing
Perfect	V-ing perfect
I could have authorized you could have authorized he could have authorized we could have authorized you could have authorized they could have authorized	I could have been authorizing you could have been authorizing he could have been authorizing we could have been authorizing you could have been authorizing they could have been authorizing

Negation

Simple form	V-ing form
I couldn't authorize you couldn't authorize he couldn't authorize we couldn't authorize you couldn't authorize they couldn't authorize	I couldn't be authorizing you couldn't be authorizing he couldn't be authorizing we couldn't be authorizing you couldn't be authorizing they couldn't be authorizing
Perfect	V-ing perfect
I couldn't have authorized you couldn't have authorized he couldn't have authorized we couldn't have authorized you couldn't have authorized they couldn't have authorized	I couldn't have been authorizing you couldn't have been authorizing he couldn't have been authorizing we couldn't have been authorizing you couldn't have been authorizing they couldn't have been authorizing

Interrogative form

Simple form	V-ing form
could I authorize? could you authorize? could he authorize? could we authorize? could you authorize? could they authorize?	could I be authorizing? could you be authorizing? could he be authorizing? could we be authorizing? could you be authorizing? could they be authorizing?
Perfect	V-ing perfect
could I have authorized? could you have authorized? could he have authorized? could we have authorized? could you have authorized? could they have authorized?	could I have been authorizing? could you have been authorizing? could he have been authorizing? could we have been authorizing? could you have been authorizing? could they have been authorizing?

Interro-negative form

Simple form	V-ing form
couldn't I authorize? couldn't you authorize? couldn't he authorize? couldn't we authorize? couldn't you authorize? couldn't they authorize?	couldn't I be authorizing? couldn't you be authorizing? couldn't he be authorizing? couldn't we be authorizing? couldn't you be authorizing? couldn't they be authorizing?
Perfect	V-ing perfect
couldn't I have authorized? couldn't you have authorized? couldn't he have authorized? couldn't we have authorized? couldn't you have authorized? couldn't they have authorized?	couldn't I have been authorizing? couldn't you have been authorizing? couldn't he have been authorizing? couldn't we have been authorizing? couldn't you have been authorizing? couldn't they have been authorizing?