I could rebel you could rebel he could rebel we could rebel you could rebel they could rebel
V-ing form
I could be rebelling you could be rebelling he could be rebelling we could be rebelling you could be rebelling they could be rebelling
Perfect
I could have rebelled you could have rebelled he could have rebelled we could have rebelled you could have rebelled they could have rebelled
V-ing perfect
I could have been rebelling you could have been rebelling he could have been rebelling we could have been rebelling you could have been rebelling they could have been rebelling
Negation
Simple form
I couldn't rebel you couldn't rebel he couldn't rebel we couldn't rebel you couldn't rebel they couldn't rebel
V-ing form
I couldn't be rebelling you couldn't be rebelling he couldn't be rebelling we couldn't be rebelling you couldn't be rebelling they couldn't be rebelling
Perfect
I couldn't have rebelled you couldn't have rebelled he couldn't have rebelled we couldn't have rebelled you couldn't have rebelled they couldn't have rebelled
V-ing perfect
I couldn't have been rebelling you couldn't have been rebelling he couldn't have been rebelling we couldn't have been rebelling you couldn't have been rebelling they couldn't have been rebelling
Interrogative form
Simple form
could I rebel? could you rebel? could he rebel? could we rebel? could you rebel? could they rebel?
V-ing form
could I be rebelling? could you be rebelling? could he be rebelling? could we be rebelling? could you be rebelling? could they be rebelling?
Perfect
could I have rebelled? could you have rebelled? could he have rebelled? could we have rebelled? could you have rebelled? could they have rebelled?
V-ing perfect
could I have been rebelling? could you have been rebelling? could he have been rebelling? could we have been rebelling? could you have been rebelling? could they have been rebelling?
Interro-negative form
Simple form
couldn't I rebel? couldn't you rebel? couldn't he rebel? couldn't we rebel? couldn't you rebel? couldn't they rebel?
V-ing form
couldn't I be rebelling? couldn't you be rebelling? couldn't he be rebelling? couldn't we be rebelling? couldn't you be rebelling? couldn't they be rebelling?
Perfect
couldn't I have rebelled? couldn't you have rebelled? couldn't he have rebelled? couldn't we have rebelled? couldn't you have rebelled? couldn't they have rebelled?
V-ing perfect
couldn't I have been rebelling? couldn't you have been rebelling? couldn't he have been rebelling? couldn't we have been rebelling? couldn't you have been rebelling? couldn't they have been rebelling?