I could bribe you could bribe he could bribe we could bribe you could bribe they could bribe
V-ing form
I could be bribing you could be bribing he could be bribing we could be bribing you could be bribing they could be bribing
Perfect
I could have bribed you could have bribed he could have bribed we could have bribed you could have bribed they could have bribed
V-ing perfect
I could have been bribing you could have been bribing he could have been bribing we could have been bribing you could have been bribing they could have been bribing
Negation
Simple form
I could not bribe you could not bribe he could not bribe we could not bribe you could not bribe they could not bribe
V-ing form
I could not be bribing you could not be bribing he could not be bribing we could not be bribing you could not be bribing they could not be bribing
Perfect
I could not have bribed you could not have bribed he could not have bribed we could not have bribed you could not have bribed they could not have bribed
V-ing perfect
I could not have been bribing you could not have been bribing he could not have been bribing we could not have been bribing you could not have been bribing they could not have been bribing
Interrogative form
Simple form
could I bribe? could you bribe? could he bribe? could we bribe? could you bribe? could they bribe?
V-ing form
could I be bribing? could you be bribing? could he be bribing? could we be bribing? could you be bribing? could they be bribing?
Perfect
could I have bribed? could you have bribed? could he have bribed? could we have bribed? could you have bribed? could they have bribed?
V-ing perfect
could I have been bribing? could you have been bribing? could he have been bribing? could we have been bribing? could you have been bribing? could they have been bribing?
Interro-negative form
Simple form
could I not bribe? could you not bribe? could he not bribe? could we not bribe? could you not bribe? could they not bribe?
V-ing form
could I not be bribing? could you not be bribing? could he not be bribing? could we not be bribing? could you not be bribing? could they not be bribing?
Perfect
could I not have bribed? could you not have bribed? could he not have bribed? could we not have bribed? could you not have bribed? could they not have bribed?
V-ing perfect
could I not have been bribing? could you not have been bribing? could he not have been bribing? could we not have been bribing? could you not have been bribing? could they not have been bribing?