I may persist you may persist she may persist we may persist you may persist they may persist
V-ing form
I may be persisting you may be persisting she may be persisting we may be persisting you may be persisting they may be persisting
Perfect
I may have persisted you may have persisted she may have persisted we may have persisted you may have persisted they may have persisted
V-ing perfect
I may have been persisting you may have been persisting she may have been persisting we may have been persisting you may have been persisting they may have been persisting
Negation
Simple form
I may not persist you may not persist she may not persist we may not persist you may not persist they may not persist
V-ing form
I may not be persisting you may not be persisting she may not be persisting we may not be persisting you may not be persisting they may not be persisting
Perfect
I may not have persisted you may not have persisted she may not have persisted we may not have persisted you may not have persisted they may not have persisted
V-ing perfect
I may not have been persisting you may not have been persisting she may not have been persisting we may not have been persisting you may not have been persisting they may not have been persisting
Interrogative form
Simple form
may I persist? may you persist? may she persist? may we persist? may you persist? may they persist?
V-ing form
may I be persisting? may you be persisting? may she be persisting? may we be persisting? may you be persisting? may they be persisting?
Perfect
may I have persisted? may you have persisted? may she have persisted? may we have persisted? may you have persisted? may they have persisted?
V-ing perfect
may I have been persisting? may you have been persisting? may she have been persisting? may we have been persisting? may you have been persisting? may they have been persisting?
Interro-negative form
Simple form
may I not persist? may you not persist? may she not persist? may we not persist? may you not persist? may they not persist?
V-ing form
may I not be persisting? may you not be persisting? may she not be persisting? may we not be persisting? may you not be persisting? may they not be persisting?
Perfect
may I not have persisted? may you not have persisted? may she not have persisted? may we not have persisted? may you not have persisted? may they not have persisted?
V-ing perfect
may I not have been persisting? may you not have been persisting? may she not have been persisting? may we not have been persisting? may you not have been persisting? may they not have been persisting?