English verb conjugation
MAY SUFFICE

Regular verb: suffice - sufficed - sufficed

Affirmation

Simple form	V-ing form
I may suffice you may suffice he may suffice we may suffice you may suffice they may suffice	I may be sufficing you may be sufficing he may be sufficing we may be sufficing you may be sufficing they may be sufficing
Perfect	V-ing perfect
I may have sufficed you may have sufficed he may have sufficed we may have sufficed you may have sufficed they may have sufficed	I may have been sufficing you may have been sufficing he may have been sufficing we may have been sufficing you may have been sufficing they may have been sufficing

Negation

Simple form	V-ing form
I mayn't suffice you mayn't suffice he mayn't suffice we mayn't suffice you mayn't suffice they mayn't suffice	I mayn't be sufficing you mayn't be sufficing he mayn't be sufficing we mayn't be sufficing you mayn't be sufficing they mayn't be sufficing
Perfect	V-ing perfect
I mayn't have sufficed you mayn't have sufficed he mayn't have sufficed we mayn't have sufficed you mayn't have sufficed they mayn't have sufficed	I mayn't have been sufficing you mayn't have been sufficing he mayn't have been sufficing we mayn't have been sufficing you mayn't have been sufficing they mayn't have been sufficing

Interrogative form

Simple form	V-ing form
may I suffice? may you suffice? may he suffice? may we suffice? may you suffice? may they suffice?	may I be sufficing? may you be sufficing? may he be sufficing? may we be sufficing? may you be sufficing? may they be sufficing?
Perfect	V-ing perfect
may I have sufficed? may you have sufficed? may he have sufficed? may we have sufficed? may you have sufficed? may they have sufficed?	may I have been sufficing? may you have been sufficing? may he have been sufficing? may we have been sufficing? may you have been sufficing? may they have been sufficing?

Interro-negative form

Simple form	V-ing form
mayn't I suffice? mayn't you suffice? mayn't he suffice? mayn't we suffice? mayn't you suffice? mayn't they suffice?	mayn't I be sufficing? mayn't you be sufficing? mayn't he be sufficing? mayn't we be sufficing? mayn't you be sufficing? mayn't they be sufficing?
Perfect	V-ing perfect
mayn't I have sufficed? mayn't you have sufficed? mayn't he have sufficed? mayn't we have sufficed? mayn't you have sufficed? mayn't they have sufficed?	mayn't I have been sufficing? mayn't you have been sufficing? mayn't he have been sufficing? mayn't we have been sufficing? mayn't you have been sufficing? mayn't they have been sufficing?