English verb conjugation
MUST SUN

Regular verb: sun - sunned - sunned

Affirmation

Simple form	V-ing form
I must sun you must sun he must sun we must sun you must sun they must sun	I must be sunning you must be sunning he must be sunning we must be sunning you must be sunning they must be sunning
Perfect	V-ing perfect
I must have sunned you must have sunned he must have sunned we must have sunned you must have sunned they must have sunned	I must have been sunning you must have been sunning he must have been sunning we must have been sunning you must have been sunning they must have been sunning

Negation

Simple form	V-ing form
I must not sun you must not sun he must not sun we must not sun you must not sun they must not sun	I must not be sunning you must not be sunning he must not be sunning we must not be sunning you must not be sunning they must not be sunning
Perfect	V-ing perfect
I must not have sunned you must not have sunned he must not have sunned we must not have sunned you must not have sunned they must not have sunned	I must not have been sunning you must not have been sunning he must not have been sunning we must not have been sunning you must not have been sunning they must not have been sunning

Interrogative form

Simple form	V-ing form
must I sun? must you sun? must he sun? must we sun? must you sun? must they sun?	must I be sunning? must you be sunning? must he be sunning? must we be sunning? must you be sunning? must they be sunning?
Perfect	V-ing perfect
must I have sunned? must you have sunned? must he have sunned? must we have sunned? must you have sunned? must they have sunned?	must I have been sunning? must you have been sunning? must he have been sunning? must we have been sunning? must you have been sunning? must they have been sunning?

Interro-negative form

Simple form	V-ing form
must I not sun? must you not sun? must he not sun? must we not sun? must you not sun? must they not sun?	must I not be sunning? must you not be sunning? must he not be sunning? must we not be sunning? must you not be sunning? must they not be sunning?
Perfect	V-ing perfect
must I not have sunned? must you not have sunned? must he not have sunned? must we not have sunned? must you not have sunned? must they not have sunned?	must I not have been sunning? must you not have been sunning? must he not have been sunning? must we not have been sunning? must you not have been sunning? must they not have been sunning?