I may coexist you may coexist he may coexist we may coexist you may coexist they may coexist
V-ing form
I may be coexisting you may be coexisting he may be coexisting we may be coexisting you may be coexisting they may be coexisting
Perfect
I may have coexisted you may have coexisted he may have coexisted we may have coexisted you may have coexisted they may have coexisted
V-ing perfect
I may have been coexisting you may have been coexisting he may have been coexisting we may have been coexisting you may have been coexisting they may have been coexisting
Negation
Simple form
I mayn't coexist you mayn't coexist he mayn't coexist we mayn't coexist you mayn't coexist they mayn't coexist
V-ing form
I mayn't be coexisting you mayn't be coexisting he mayn't be coexisting we mayn't be coexisting you mayn't be coexisting they mayn't be coexisting
Perfect
I mayn't have coexisted you mayn't have coexisted he mayn't have coexisted we mayn't have coexisted you mayn't have coexisted they mayn't have coexisted
V-ing perfect
I mayn't have been coexisting you mayn't have been coexisting he mayn't have been coexisting we mayn't have been coexisting you mayn't have been coexisting they mayn't have been coexisting
Interrogative form
Simple form
may I coexist? may you coexist? may he coexist? may we coexist? may you coexist? may they coexist?
V-ing form
may I be coexisting? may you be coexisting? may he be coexisting? may we be coexisting? may you be coexisting? may they be coexisting?
Perfect
may I have coexisted? may you have coexisted? may he have coexisted? may we have coexisted? may you have coexisted? may they have coexisted?
V-ing perfect
may I have been coexisting? may you have been coexisting? may he have been coexisting? may we have been coexisting? may you have been coexisting? may they have been coexisting?
Interro-negative form
Simple form
mayn't I coexist? mayn't you coexist? mayn't he coexist? mayn't we coexist? mayn't you coexist? mayn't they coexist?
V-ing form
mayn't I be coexisting? mayn't you be coexisting? mayn't he be coexisting? mayn't we be coexisting? mayn't you be coexisting? mayn't they be coexisting?
Perfect
mayn't I have coexisted? mayn't you have coexisted? mayn't he have coexisted? mayn't we have coexisted? mayn't you have coexisted? mayn't they have coexisted?
V-ing perfect
mayn't I have been coexisting? mayn't you have been coexisting? mayn't he have been coexisting? mayn't we have been coexisting? mayn't you have been coexisting? mayn't they have been coexisting?