English verb conjugation
MAY LIST

Regular verb: list - listed - listed

Affirmation

Simple form	V-ing form
I may list you may list he may list we may list you may list they may list	I may be listing you may be listing he may be listing we may be listing you may be listing they may be listing
Perfect	V-ing perfect
I may have listed you may have listed he may have listed we may have listed you may have listed they may have listed	I may have been listing you may have been listing he may have been listing we may have been listing you may have been listing they may have been listing

Negation

Simple form	V-ing form
I mayn't list you mayn't list he mayn't list we mayn't list you mayn't list they mayn't list	I mayn't be listing you mayn't be listing he mayn't be listing we mayn't be listing you mayn't be listing they mayn't be listing
Perfect	V-ing perfect
I mayn't have listed you mayn't have listed he mayn't have listed we mayn't have listed you mayn't have listed they mayn't have listed	I mayn't have been listing you mayn't have been listing he mayn't have been listing we mayn't have been listing you mayn't have been listing they mayn't have been listing

Interrogative form

Simple form	V-ing form
may I list? may you list? may he list? may we list? may you list? may they list?	may I be listing? may you be listing? may he be listing? may we be listing? may you be listing? may they be listing?
Perfect	V-ing perfect
may I have listed? may you have listed? may he have listed? may we have listed? may you have listed? may they have listed?	may I have been listing? may you have been listing? may he have been listing? may we have been listing? may you have been listing? may they have been listing?

Interro-negative form

Simple form	V-ing form
mayn't I list? mayn't you list? mayn't he list? mayn't we list? mayn't you list? mayn't they list?	mayn't I be listing? mayn't you be listing? mayn't he be listing? mayn't we be listing? mayn't you be listing? mayn't they be listing?
Perfect	V-ing perfect
mayn't I have listed? mayn't you have listed? mayn't he have listed? mayn't we have listed? mayn't you have listed? mayn't they have listed?	mayn't I have been listing? mayn't you have been listing? mayn't he have been listing? mayn't we have been listing? mayn't you have been listing? mayn't they have been listing?