I could unveil you could unveil he could unveil we could unveil you could unveil they could unveil
V-ing form
I could be unveiling you could be unveiling he could be unveiling we could be unveiling you could be unveiling they could be unveiling
Perfect
I could have unveiled you could have unveiled he could have unveiled we could have unveiled you could have unveiled they could have unveiled
V-ing perfect
I could have been unveiling you could have been unveiling he could have been unveiling we could have been unveiling you could have been unveiling they could have been unveiling
Negation
Simple form
I could not unveil you could not unveil he could not unveil we could not unveil you could not unveil they could not unveil
V-ing form
I could not be unveiling you could not be unveiling he could not be unveiling we could not be unveiling you could not be unveiling they could not be unveiling
Perfect
I could not have unveiled you could not have unveiled he could not have unveiled we could not have unveiled you could not have unveiled they could not have unveiled
V-ing perfect
I could not have been unveiling you could not have been unveiling he could not have been unveiling we could not have been unveiling you could not have been unveiling they could not have been unveiling
Interrogative form
Simple form
could I unveil? could you unveil? could he unveil? could we unveil? could you unveil? could they unveil?
V-ing form
could I be unveiling? could you be unveiling? could he be unveiling? could we be unveiling? could you be unveiling? could they be unveiling?
Perfect
could I have unveiled? could you have unveiled? could he have unveiled? could we have unveiled? could you have unveiled? could they have unveiled?
V-ing perfect
could I have been unveiling? could you have been unveiling? could he have been unveiling? could we have been unveiling? could you have been unveiling? could they have been unveiling?
Interro-negative form
Simple form
could I not unveil? could you not unveil? could he not unveil? could we not unveil? could you not unveil? could they not unveil?
V-ing form
could I not be unveiling? could you not be unveiling? could he not be unveiling? could we not be unveiling? could you not be unveiling? could they not be unveiling?
Perfect
could I not have unveiled? could you not have unveiled? could he not have unveiled? could we not have unveiled? could you not have unveiled? could they not have unveiled?
V-ing perfect
could I not have been unveiling? could you not have been unveiling? could he not have been unveiling? could we not have been unveiling? could you not have been unveiling? could they not have been unveiling?