English verb conjugation
MAY MESS

Regular verb: mess - messed - messed

Affirmation

Simple form	V-ing form
I may mess you may mess he may mess we may mess you may mess they may mess	I may be messing you may be messing he may be messing we may be messing you may be messing they may be messing
Perfect	V-ing perfect
I may have messed you may have messed he may have messed we may have messed you may have messed they may have messed	I may have been messing you may have been messing he may have been messing we may have been messing you may have been messing they may have been messing

Negation

Simple form	V-ing form
I mayn't mess you mayn't mess he mayn't mess we mayn't mess you mayn't mess they mayn't mess	I mayn't be messing you mayn't be messing he mayn't be messing we mayn't be messing you mayn't be messing they mayn't be messing
Perfect	V-ing perfect
I mayn't have messed you mayn't have messed he mayn't have messed we mayn't have messed you mayn't have messed they mayn't have messed	I mayn't have been messing you mayn't have been messing he mayn't have been messing we mayn't have been messing you mayn't have been messing they mayn't have been messing

Interrogative form

Simple form	V-ing form
may I mess? may you mess? may he mess? may we mess? may you mess? may they mess?	may I be messing? may you be messing? may he be messing? may we be messing? may you be messing? may they be messing?
Perfect	V-ing perfect
may I have messed? may you have messed? may he have messed? may we have messed? may you have messed? may they have messed?	may I have been messing? may you have been messing? may he have been messing? may we have been messing? may you have been messing? may they have been messing?

Interro-negative form

Simple form	V-ing form
mayn't I mess? mayn't you mess? mayn't he mess? mayn't we mess? mayn't you mess? mayn't they mess?	mayn't I be messing? mayn't you be messing? mayn't he be messing? mayn't we be messing? mayn't you be messing? mayn't they be messing?
Perfect	V-ing perfect
mayn't I have messed? mayn't you have messed? mayn't he have messed? mayn't we have messed? mayn't you have messed? mayn't they have messed?	mayn't I have been messing? mayn't you have been messing? mayn't he have been messing? mayn't we have been messing? mayn't you have been messing? mayn't they have been messing?