I could administrate you could administrate he could administrate we could administrate you could administrate they could administrate
V-ing form
I could be administrating you could be administrating he could be administrating we could be administrating you could be administrating they could be administrating
Perfect
I could have administrated you could have administrated he could have administrated we could have administrated you could have administrated they could have administrated
V-ing perfect
I could have been administrating you could have been administrating he could have been administrating we could have been administrating you could have been administrating they could have been administrating
Negation
Simple form
I could not administrate you could not administrate he could not administrate we could not administrate you could not administrate they could not administrate
V-ing form
I could not be administrating you could not be administrating he could not be administrating we could not be administrating you could not be administrating they could not be administrating
Perfect
I could not have administrated you could not have administrated he could not have administrated we could not have administrated you could not have administrated they could not have administrated
V-ing perfect
I could not have been administrating you could not have been administrating he could not have been administrating we could not have been administrating you could not have been administrating they could not have been administrating
Interrogative form
Simple form
could I administrate? could you administrate? could he administrate? could we administrate? could you administrate? could they administrate?
V-ing form
could I be administrating? could you be administrating? could he be administrating? could we be administrating? could you be administrating? could they be administrating?
Perfect
could I have administrated? could you have administrated? could he have administrated? could we have administrated? could you have administrated? could they have administrated?
V-ing perfect
could I have been administrating? could you have been administrating? could he have been administrating? could we have been administrating? could you have been administrating? could they have been administrating?
Interro-negative form
Simple form
could I not administrate? could you not administrate? could he not administrate? could we not administrate? could you not administrate? could they not administrate?
V-ing form
could I not be administrating? could you not be administrating? could he not be administrating? could we not be administrating? could you not be administrating? could they not be administrating?
Perfect
could I not have administrated? could you not have administrated? could he not have administrated? could we not have administrated? could you not have administrated? could they not have administrated?
V-ing perfect
could I not have been administrating? could you not have been administrating? could he not have been administrating? could we not have been administrating? could you not have been administrating? could they not have been administrating?