I could lime you could lime he could lime we could lime you could lime they could lime
V-ing form
I could be liming you could be liming he could be liming we could be liming you could be liming they could be liming
Perfect
I could have limed you could have limed he could have limed we could have limed you could have limed they could have limed
V-ing perfect
I could have been liming you could have been liming he could have been liming we could have been liming you could have been liming they could have been liming
Negation
Simple form
I could not lime you could not lime he could not lime we could not lime you could not lime they could not lime
V-ing form
I could not be liming you could not be liming he could not be liming we could not be liming you could not be liming they could not be liming
Perfect
I could not have limed you could not have limed he could not have limed we could not have limed you could not have limed they could not have limed
V-ing perfect
I could not have been liming you could not have been liming he could not have been liming we could not have been liming you could not have been liming they could not have been liming
Interrogative form
Simple form
could I lime? could you lime? could he lime? could we lime? could you lime? could they lime?
V-ing form
could I be liming? could you be liming? could he be liming? could we be liming? could you be liming? could they be liming?
Perfect
could I have limed? could you have limed? could he have limed? could we have limed? could you have limed? could they have limed?
V-ing perfect
could I have been liming? could you have been liming? could he have been liming? could we have been liming? could you have been liming? could they have been liming?
Interro-negative form
Simple form
could I not lime? could you not lime? could he not lime? could we not lime? could you not lime? could they not lime?
V-ing form
could I not be liming? could you not be liming? could he not be liming? could we not be liming? could you not be liming? could they not be liming?
Perfect
could I not have limed? could you not have limed? could he not have limed? could we not have limed? could you not have limed? could they not have limed?
V-ing perfect
could I not have been liming? could you not have been liming? could he not have been liming? could we not have been liming? could you not have been liming? could they not have been liming?