I could overaffect you could overaffect he could overaffect we could overaffect you could overaffect they could overaffect
V-ing form
I could be overaffecting you could be overaffecting he could be overaffecting we could be overaffecting you could be overaffecting they could be overaffecting
Perfect
I could have overaffected you could have overaffected he could have overaffected we could have overaffected you could have overaffected they could have overaffected
V-ing perfect
I could have been overaffecting you could have been overaffecting he could have been overaffecting we could have been overaffecting you could have been overaffecting they could have been overaffecting
Negation
Simple form
I could not overaffect you could not overaffect he could not overaffect we could not overaffect you could not overaffect they could not overaffect
V-ing form
I could not be overaffecting you could not be overaffecting he could not be overaffecting we could not be overaffecting you could not be overaffecting they could not be overaffecting
Perfect
I could not have overaffected you could not have overaffected he could not have overaffected we could not have overaffected you could not have overaffected they could not have overaffected
V-ing perfect
I could not have been overaffecting you could not have been overaffecting he could not have been overaffecting we could not have been overaffecting you could not have been overaffecting they could not have been overaffecting
Interrogative form
Simple form
could I overaffect? could you overaffect? could he overaffect? could we overaffect? could you overaffect? could they overaffect?
V-ing form
could I be overaffecting? could you be overaffecting? could he be overaffecting? could we be overaffecting? could you be overaffecting? could they be overaffecting?
Perfect
could I have overaffected? could you have overaffected? could he have overaffected? could we have overaffected? could you have overaffected? could they have overaffected?
V-ing perfect
could I have been overaffecting? could you have been overaffecting? could he have been overaffecting? could we have been overaffecting? could you have been overaffecting? could they have been overaffecting?
Interro-negative form
Simple form
could I not overaffect? could you not overaffect? could he not overaffect? could we not overaffect? could you not overaffect? could they not overaffect?
V-ing form
could I not be overaffecting? could you not be overaffecting? could he not be overaffecting? could we not be overaffecting? could you not be overaffecting? could they not be overaffecting?
Perfect
could I not have overaffected? could you not have overaffected? could he not have overaffected? could we not have overaffected? could you not have overaffected? could they not have overaffected?
V-ing perfect
could I not have been overaffecting? could you not have been overaffecting? could he not have been overaffecting? could we not have been overaffecting? could you not have been overaffecting? could they not have been overaffecting?