English verb conjugation
MAY PREEXIST

Regular verb: preexist - preexisted - preexisted

Affirmation

Simple form	V-ing form
I may preexist you may preexist she may preexist we may preexist you may preexist they may preexist	I may be preexisting you may be preexisting she may be preexisting we may be preexisting you may be preexisting they may be preexisting
Perfect	V-ing perfect
I may have preexisted you may have preexisted she may have preexisted we may have preexisted you may have preexisted they may have preexisted	I may have been preexisting you may have been preexisting she may have been preexisting we may have been preexisting you may have been preexisting they may have been preexisting

Negation

Simple form	V-ing form
I mayn't preexist you mayn't preexist she mayn't preexist we mayn't preexist you mayn't preexist they mayn't preexist	I mayn't be preexisting you mayn't be preexisting she mayn't be preexisting we mayn't be preexisting you mayn't be preexisting they mayn't be preexisting
Perfect	V-ing perfect
I mayn't have preexisted you mayn't have preexisted she mayn't have preexisted we mayn't have preexisted you mayn't have preexisted they mayn't have preexisted	I mayn't have been preexisting you mayn't have been preexisting she mayn't have been preexisting we mayn't have been preexisting you mayn't have been preexisting they mayn't have been preexisting

Interrogative form

Simple form	V-ing form
may I preexist? may you preexist? may she preexist? may we preexist? may you preexist? may they preexist?	may I be preexisting? may you be preexisting? may she be preexisting? may we be preexisting? may you be preexisting? may they be preexisting?
Perfect	V-ing perfect
may I have preexisted? may you have preexisted? may she have preexisted? may we have preexisted? may you have preexisted? may they have preexisted?	may I have been preexisting? may you have been preexisting? may she have been preexisting? may we have been preexisting? may you have been preexisting? may they have been preexisting?

Interro-negative form

Simple form	V-ing form
mayn't I preexist? mayn't you preexist? mayn't she preexist? mayn't we preexist? mayn't you preexist? mayn't they preexist?	mayn't I be preexisting? mayn't you be preexisting? mayn't she be preexisting? mayn't we be preexisting? mayn't you be preexisting? mayn't they be preexisting?
Perfect	V-ing perfect
mayn't I have preexisted? mayn't you have preexisted? mayn't she have preexisted? mayn't we have preexisted? mayn't you have preexisted? mayn't they have preexisted?	mayn't I have been preexisting? mayn't you have been preexisting? mayn't she have been preexisting? mayn't we have been preexisting? mayn't you have been preexisting? mayn't they have been preexisting?