English verb conjugation
MAY UNDERTAKE

Irregular verb: undertake - undertook - undertaken

Affirmation

Simple form	V-ing form
I may undertake you may undertake he may undertake we may undertake you may undertake they may undertake	I may be undertaking you may be undertaking he may be undertaking we may be undertaking you may be undertaking they may be undertaking
Perfect	V-ing perfect
I may have undertaken you may have undertaken he may have undertaken we may have undertaken you may have undertaken they may have undertaken	I may have been undertaking you may have been undertaking he may have been undertaking we may have been undertaking you may have been undertaking they may have been undertaking

Negation

Simple form	V-ing form
I mayn't undertake you mayn't undertake he mayn't undertake we mayn't undertake you mayn't undertake they mayn't undertake	I mayn't be undertaking you mayn't be undertaking he mayn't be undertaking we mayn't be undertaking you mayn't be undertaking they mayn't be undertaking
Perfect	V-ing perfect
I mayn't have undertaken you mayn't have undertaken he mayn't have undertaken we mayn't have undertaken you mayn't have undertaken they mayn't have undertaken	I mayn't have been undertaking you mayn't have been undertaking he mayn't have been undertaking we mayn't have been undertaking you mayn't have been undertaking they mayn't have been undertaking

Interrogative form

Simple form	V-ing form
may I undertake? may you undertake? may he undertake? may we undertake? may you undertake? may they undertake?	may I be undertaking? may you be undertaking? may he be undertaking? may we be undertaking? may you be undertaking? may they be undertaking?
Perfect	V-ing perfect
may I have undertaken? may you have undertaken? may he have undertaken? may we have undertaken? may you have undertaken? may they have undertaken?	may I have been undertaking? may you have been undertaking? may he have been undertaking? may we have been undertaking? may you have been undertaking? may they have been undertaking?

Interro-negative form

Simple form	V-ing form
mayn't I undertake? mayn't you undertake? mayn't he undertake? mayn't we undertake? mayn't you undertake? mayn't they undertake?	mayn't I be undertaking? mayn't you be undertaking? mayn't he be undertaking? mayn't we be undertaking? mayn't you be undertaking? mayn't they be undertaking?
Perfect	V-ing perfect
mayn't I have undertaken? mayn't you have undertaken? mayn't he have undertaken? mayn't we have undertaken? mayn't you have undertaken? mayn't they have undertaken?	mayn't I have been undertaking? mayn't you have been undertaking? mayn't he have been undertaking? mayn't we have been undertaking? mayn't you have been undertaking? mayn't they have been undertaking?