English verb conjugation
MAY UNDERTAIN

Regular verb: undertain - undertained - undertained

Affirmation

Simple form	V-ing form
I may undertain you may undertain he may undertain we may undertain you may undertain they may undertain	I may be undertaining you may be undertaining he may be undertaining we may be undertaining you may be undertaining they may be undertaining
Perfect	V-ing perfect
I may have undertained you may have undertained he may have undertained we may have undertained you may have undertained they may have undertained	I may have been undertaining you may have been undertaining he may have been undertaining we may have been undertaining you may have been undertaining they may have been undertaining

Negation

Simple form	V-ing form
I mayn't undertain you mayn't undertain he mayn't undertain we mayn't undertain you mayn't undertain they mayn't undertain	I mayn't be undertaining you mayn't be undertaining he mayn't be undertaining we mayn't be undertaining you mayn't be undertaining they mayn't be undertaining
Perfect	V-ing perfect
I mayn't have undertained you mayn't have undertained he mayn't have undertained we mayn't have undertained you mayn't have undertained they mayn't have undertained	I mayn't have been undertaining you mayn't have been undertaining he mayn't have been undertaining we mayn't have been undertaining you mayn't have been undertaining they mayn't have been undertaining

Interrogative form

Simple form	V-ing form
may I undertain? may you undertain? may he undertain? may we undertain? may you undertain? may they undertain?	may I be undertaining? may you be undertaining? may he be undertaining? may we be undertaining? may you be undertaining? may they be undertaining?
Perfect	V-ing perfect
may I have undertained? may you have undertained? may he have undertained? may we have undertained? may you have undertained? may they have undertained?	may I have been undertaining? may you have been undertaining? may he have been undertaining? may we have been undertaining? may you have been undertaining? may they have been undertaining?

Interro-negative form

Simple form	V-ing form
mayn't I undertain? mayn't you undertain? mayn't he undertain? mayn't we undertain? mayn't you undertain? mayn't they undertain?	mayn't I be undertaining? mayn't you be undertaining? mayn't he be undertaining? mayn't we be undertaining? mayn't you be undertaining? mayn't they be undertaining?
Perfect	V-ing perfect
mayn't I have undertained? mayn't you have undertained? mayn't he have undertained? mayn't we have undertained? mayn't you have undertained? mayn't they have undertained?	mayn't I have been undertaining? mayn't you have been undertaining? mayn't he have been undertaining? mayn't we have been undertaining? mayn't you have been undertaining? mayn't they have been undertaining?