English verb conjugation
MUST CORN

Regular verb: corn - corned - corned

Affirmation

Simple form	V-ing form
I must corn you must corn he must corn we must corn you must corn they must corn	I must be corning you must be corning he must be corning we must be corning you must be corning they must be corning
Perfect	V-ing perfect
I must have corned you must have corned he must have corned we must have corned you must have corned they must have corned	I must have been corning you must have been corning he must have been corning we must have been corning you must have been corning they must have been corning

Negation

Simple form	V-ing form
I must not corn you must not corn he must not corn we must not corn you must not corn they must not corn	I must not be corning you must not be corning he must not be corning we must not be corning you must not be corning they must not be corning
Perfect	V-ing perfect
I must not have corned you must not have corned he must not have corned we must not have corned you must not have corned they must not have corned	I must not have been corning you must not have been corning he must not have been corning we must not have been corning you must not have been corning they must not have been corning

Interrogative form

Simple form	V-ing form
must I corn? must you corn? must he corn? must we corn? must you corn? must they corn?	must I be corning? must you be corning? must he be corning? must we be corning? must you be corning? must they be corning?
Perfect	V-ing perfect
must I have corned? must you have corned? must he have corned? must we have corned? must you have corned? must they have corned?	must I have been corning? must you have been corning? must he have been corning? must we have been corning? must you have been corning? must they have been corning?

Interro-negative form

Simple form	V-ing form
must I not corn? must you not corn? must he not corn? must we not corn? must you not corn? must they not corn?	must I not be corning? must you not be corning? must he not be corning? must we not be corning? must you not be corning? must they not be corning?
Perfect	V-ing perfect
must I not have corned? must you not have corned? must he not have corned? must we not have corned? must you not have corned? must they not have corned?	must I not have been corning? must you not have been corning? must he not have been corning? must we not have been corning? must you not have been corning? must they not have been corning?