I could personate you could personate he could personate we could personate you could personate they could personate
V-ing form
I could be personating you could be personating he could be personating we could be personating you could be personating they could be personating
Perfect
I could have personated you could have personated he could have personated we could have personated you could have personated they could have personated
V-ing perfect
I could have been personating you could have been personating he could have been personating we could have been personating you could have been personating they could have been personating
Negation
Simple form
I could not personate you could not personate he could not personate we could not personate you could not personate they could not personate
V-ing form
I could not be personating you could not be personating he could not be personating we could not be personating you could not be personating they could not be personating
Perfect
I could not have personated you could not have personated he could not have personated we could not have personated you could not have personated they could not have personated
V-ing perfect
I could not have been personating you could not have been personating he could not have been personating we could not have been personating you could not have been personating they could not have been personating
Interrogative form
Simple form
could I personate? could you personate? could he personate? could we personate? could you personate? could they personate?
V-ing form
could I be personating? could you be personating? could he be personating? could we be personating? could you be personating? could they be personating?
Perfect
could I have personated? could you have personated? could he have personated? could we have personated? could you have personated? could they have personated?
V-ing perfect
could I have been personating? could you have been personating? could he have been personating? could we have been personating? could you have been personating? could they have been personating?
Interro-negative form
Simple form
could I not personate? could you not personate? could he not personate? could we not personate? could you not personate? could they not personate?
V-ing form
could I not be personating? could you not be personating? could he not be personating? could we not be personating? could you not be personating? could they not be personating?
Perfect
could I not have personated? could you not have personated? could he not have personated? could we not have personated? could you not have personated? could they not have personated?
V-ing perfect
could I not have been personating? could you not have been personating? could he not have been personating? could we not have been personating? could you not have been personating? could they not have been personating?