English verb conjugation
MAY INVENT

Regular verb: invent - invented - invented

Affirmation

Simple form	V-ing form
I may invent you may invent he may invent we may invent you may invent they may invent	I may be inventing you may be inventing he may be inventing we may be inventing you may be inventing they may be inventing
Perfect	V-ing perfect
I may have invented you may have invented he may have invented we may have invented you may have invented they may have invented	I may have been inventing you may have been inventing he may have been inventing we may have been inventing you may have been inventing they may have been inventing

Negation

Simple form	V-ing form
I mayn't invent you mayn't invent he mayn't invent we mayn't invent you mayn't invent they mayn't invent	I mayn't be inventing you mayn't be inventing he mayn't be inventing we mayn't be inventing you mayn't be inventing they mayn't be inventing
Perfect	V-ing perfect
I mayn't have invented you mayn't have invented he mayn't have invented we mayn't have invented you mayn't have invented they mayn't have invented	I mayn't have been inventing you mayn't have been inventing he mayn't have been inventing we mayn't have been inventing you mayn't have been inventing they mayn't have been inventing

Interrogative form

Simple form	V-ing form
may I invent? may you invent? may he invent? may we invent? may you invent? may they invent?	may I be inventing? may you be inventing? may he be inventing? may we be inventing? may you be inventing? may they be inventing?
Perfect	V-ing perfect
may I have invented? may you have invented? may he have invented? may we have invented? may you have invented? may they have invented?	may I have been inventing? may you have been inventing? may he have been inventing? may we have been inventing? may you have been inventing? may they have been inventing?

Interro-negative form

Simple form	V-ing form
mayn't I invent? mayn't you invent? mayn't he invent? mayn't we invent? mayn't you invent? mayn't they invent?	mayn't I be inventing? mayn't you be inventing? mayn't he be inventing? mayn't we be inventing? mayn't you be inventing? mayn't they be inventing?
Perfect	V-ing perfect
mayn't I have invented? mayn't you have invented? mayn't he have invented? mayn't we have invented? mayn't you have invented? mayn't they have invented?	mayn't I have been inventing? mayn't you have been inventing? mayn't he have been inventing? mayn't we have been inventing? mayn't you have been inventing? mayn't they have been inventing?