English verb conjugation
MAY INVIGILATE

Regular verb: invigilate - invigilated - invigilated

Affirmation

Simple form	V-ing form
I may invigilate you may invigilate he may invigilate we may invigilate you may invigilate they may invigilate	I may be invigilating you may be invigilating he may be invigilating we may be invigilating you may be invigilating they may be invigilating
Perfect	V-ing perfect
I may have invigilated you may have invigilated he may have invigilated we may have invigilated you may have invigilated they may have invigilated	I may have been invigilating you may have been invigilating he may have been invigilating we may have been invigilating you may have been invigilating they may have been invigilating

Negation

Simple form	V-ing form
I mayn't invigilate you mayn't invigilate he mayn't invigilate we mayn't invigilate you mayn't invigilate they mayn't invigilate	I mayn't be invigilating you mayn't be invigilating he mayn't be invigilating we mayn't be invigilating you mayn't be invigilating they mayn't be invigilating
Perfect	V-ing perfect
I mayn't have invigilated you mayn't have invigilated he mayn't have invigilated we mayn't have invigilated you mayn't have invigilated they mayn't have invigilated	I mayn't have been invigilating you mayn't have been invigilating he mayn't have been invigilating we mayn't have been invigilating you mayn't have been invigilating they mayn't have been invigilating

Interrogative form

Simple form	V-ing form
may I invigilate? may you invigilate? may he invigilate? may we invigilate? may you invigilate? may they invigilate?	may I be invigilating? may you be invigilating? may he be invigilating? may we be invigilating? may you be invigilating? may they be invigilating?
Perfect	V-ing perfect
may I have invigilated? may you have invigilated? may he have invigilated? may we have invigilated? may you have invigilated? may they have invigilated?	may I have been invigilating? may you have been invigilating? may he have been invigilating? may we have been invigilating? may you have been invigilating? may they have been invigilating?

Interro-negative form

Simple form	V-ing form
mayn't I invigilate? mayn't you invigilate? mayn't he invigilate? mayn't we invigilate? mayn't you invigilate? mayn't they invigilate?	mayn't I be invigilating? mayn't you be invigilating? mayn't he be invigilating? mayn't we be invigilating? mayn't you be invigilating? mayn't they be invigilating?
Perfect	V-ing perfect
mayn't I have invigilated? mayn't you have invigilated? mayn't he have invigilated? mayn't we have invigilated? mayn't you have invigilated? mayn't they have invigilated?	mayn't I have been invigilating? mayn't you have been invigilating? mayn't he have been invigilating? mayn't we have been invigilating? mayn't you have been invigilating? mayn't they have been invigilating?