English verb conjugation
MAY UNDERHEAT

Regular verb: underheat - underheated - underheated

Affirmation

Simple form	V-ing form
I may underheat you may underheat he may underheat we may underheat you may underheat they may underheat	I may be underheating you may be underheating he may be underheating we may be underheating you may be underheating they may be underheating
Perfect	V-ing perfect
I may have underheated you may have underheated he may have underheated we may have underheated you may have underheated they may have underheated	I may have been underheating you may have been underheating he may have been underheating we may have been underheating you may have been underheating they may have been underheating

Negation

Simple form	V-ing form
I mayn't underheat you mayn't underheat he mayn't underheat we mayn't underheat you mayn't underheat they mayn't underheat	I mayn't be underheating you mayn't be underheating he mayn't be underheating we mayn't be underheating you mayn't be underheating they mayn't be underheating
Perfect	V-ing perfect
I mayn't have underheated you mayn't have underheated he mayn't have underheated we mayn't have underheated you mayn't have underheated they mayn't have underheated	I mayn't have been underheating you mayn't have been underheating he mayn't have been underheating we mayn't have been underheating you mayn't have been underheating they mayn't have been underheating

Interrogative form

Simple form	V-ing form
may I underheat? may you underheat? may he underheat? may we underheat? may you underheat? may they underheat?	may I be underheating? may you be underheating? may he be underheating? may we be underheating? may you be underheating? may they be underheating?
Perfect	V-ing perfect
may I have underheated? may you have underheated? may he have underheated? may we have underheated? may you have underheated? may they have underheated?	may I have been underheating? may you have been underheating? may he have been underheating? may we have been underheating? may you have been underheating? may they have been underheating?

Interro-negative form

Simple form	V-ing form
mayn't I underheat? mayn't you underheat? mayn't he underheat? mayn't we underheat? mayn't you underheat? mayn't they underheat?	mayn't I be underheating? mayn't you be underheating? mayn't he be underheating? mayn't we be underheating? mayn't you be underheating? mayn't they be underheating?
Perfect	V-ing perfect
mayn't I have underheated? mayn't you have underheated? mayn't he have underheated? mayn't we have underheated? mayn't you have underheated? mayn't they have underheated?	mayn't I have been underheating? mayn't you have been underheating? mayn't he have been underheating? mayn't we have been underheating? mayn't you have been underheating? mayn't they have been underheating?