I may cement you may cement she may cement we may cement you may cement they may cement
V-ing form
I may be cementing you may be cementing she may be cementing we may be cementing you may be cementing they may be cementing
Perfect
I may have cemented you may have cemented she may have cemented we may have cemented you may have cemented they may have cemented
V-ing perfect
I may have been cementing you may have been cementing she may have been cementing we may have been cementing you may have been cementing they may have been cementing
Negation
Simple form
I may not cement you may not cement she may not cement we may not cement you may not cement they may not cement
V-ing form
I may not be cementing you may not be cementing she may not be cementing we may not be cementing you may not be cementing they may not be cementing
Perfect
I may not have cemented you may not have cemented she may not have cemented we may not have cemented you may not have cemented they may not have cemented
V-ing perfect
I may not have been cementing you may not have been cementing she may not have been cementing we may not have been cementing you may not have been cementing they may not have been cementing
Interrogative form
Simple form
may I cement? may you cement? may she cement? may we cement? may you cement? may they cement?
V-ing form
may I be cementing? may you be cementing? may she be cementing? may we be cementing? may you be cementing? may they be cementing?
Perfect
may I have cemented? may you have cemented? may she have cemented? may we have cemented? may you have cemented? may they have cemented?
V-ing perfect
may I have been cementing? may you have been cementing? may she have been cementing? may we have been cementing? may you have been cementing? may they have been cementing?
Interro-negative form
Simple form
may I not cement? may you not cement? may she not cement? may we not cement? may you not cement? may they not cement?
V-ing form
may I not be cementing? may you not be cementing? may she not be cementing? may we not be cementing? may you not be cementing? may they not be cementing?
Perfect
may I not have cemented? may you not have cemented? may she not have cemented? may we not have cemented? may you not have cemented? may they not have cemented?
V-ing perfect
may I not have been cementing? may you not have been cementing? may she not have been cementing? may we not have been cementing? may you not have been cementing? may they not have been cementing?