English verb conjugation
MAY VENTILATE

Regular verb: ventilate - ventilated - ventilated

Affirmation

Simple form	V-ing form
I may ventilate you may ventilate he may ventilate we may ventilate you may ventilate they may ventilate	I may be ventilating you may be ventilating he may be ventilating we may be ventilating you may be ventilating they may be ventilating
Perfect	V-ing perfect
I may have ventilated you may have ventilated he may have ventilated we may have ventilated you may have ventilated they may have ventilated	I may have been ventilating you may have been ventilating he may have been ventilating we may have been ventilating you may have been ventilating they may have been ventilating

Negation

Simple form	V-ing form
I mayn't ventilate you mayn't ventilate he mayn't ventilate we mayn't ventilate you mayn't ventilate they mayn't ventilate	I mayn't be ventilating you mayn't be ventilating he mayn't be ventilating we mayn't be ventilating you mayn't be ventilating they mayn't be ventilating
Perfect	V-ing perfect
I mayn't have ventilated you mayn't have ventilated he mayn't have ventilated we mayn't have ventilated you mayn't have ventilated they mayn't have ventilated	I mayn't have been ventilating you mayn't have been ventilating he mayn't have been ventilating we mayn't have been ventilating you mayn't have been ventilating they mayn't have been ventilating

Interrogative form

Simple form	V-ing form
may I ventilate? may you ventilate? may he ventilate? may we ventilate? may you ventilate? may they ventilate?	may I be ventilating? may you be ventilating? may he be ventilating? may we be ventilating? may you be ventilating? may they be ventilating?
Perfect	V-ing perfect
may I have ventilated? may you have ventilated? may he have ventilated? may we have ventilated? may you have ventilated? may they have ventilated?	may I have been ventilating? may you have been ventilating? may he have been ventilating? may we have been ventilating? may you have been ventilating? may they have been ventilating?

Interro-negative form

Simple form	V-ing form
mayn't I ventilate? mayn't you ventilate? mayn't he ventilate? mayn't we ventilate? mayn't you ventilate? mayn't they ventilate?	mayn't I be ventilating? mayn't you be ventilating? mayn't he be ventilating? mayn't we be ventilating? mayn't you be ventilating? mayn't they be ventilating?
Perfect	V-ing perfect
mayn't I have ventilated? mayn't you have ventilated? mayn't he have ventilated? mayn't we have ventilated? mayn't you have ventilated? mayn't they have ventilated?	mayn't I have been ventilating? mayn't you have been ventilating? mayn't he have been ventilating? mayn't we have been ventilating? mayn't you have been ventilating? mayn't they have been ventilating?