English verb conjugation
MUST SUPPLEMENT

Regular verb: supplement - supplemented - supplemented

Affirmation

Simple form	V-ing form
I must supplement you must supplement he must supplement we must supplement you must supplement they must supplement	I must be supplementing you must be supplementing he must be supplementing we must be supplementing you must be supplementing they must be supplementing
Perfect	V-ing perfect
I must have supplemented you must have supplemented he must have supplemented we must have supplemented you must have supplemented they must have supplemented	I must have been supplementing you must have been supplementing he must have been supplementing we must have been supplementing you must have been supplementing they must have been supplementing

Negation

Simple form	V-ing form
I must not supplement you must not supplement he must not supplement we must not supplement you must not supplement they must not supplement	I must not be supplementing you must not be supplementing he must not be supplementing we must not be supplementing you must not be supplementing they must not be supplementing
Perfect	V-ing perfect
I must not have supplemented you must not have supplemented he must not have supplemented we must not have supplemented you must not have supplemented they must not have supplemented	I must not have been supplementing you must not have been supplementing he must not have been supplementing we must not have been supplementing you must not have been supplementing they must not have been supplementing

Interrogative form

Simple form	V-ing form
must I supplement? must you supplement? must he supplement? must we supplement? must you supplement? must they supplement?	must I be supplementing? must you be supplementing? must he be supplementing? must we be supplementing? must you be supplementing? must they be supplementing?
Perfect	V-ing perfect
must I have supplemented? must you have supplemented? must he have supplemented? must we have supplemented? must you have supplemented? must they have supplemented?	must I have been supplementing? must you have been supplementing? must he have been supplementing? must we have been supplementing? must you have been supplementing? must they have been supplementing?

Interro-negative form

Simple form	V-ing form
must I not supplement? must you not supplement? must he not supplement? must we not supplement? must you not supplement? must they not supplement?	must I not be supplementing? must you not be supplementing? must he not be supplementing? must we not be supplementing? must you not be supplementing? must they not be supplementing?
Perfect	V-ing perfect
must I not have supplemented? must you not have supplemented? must he not have supplemented? must we not have supplemented? must you not have supplemented? must they not have supplemented?	must I not have been supplementing? must you not have been supplementing? must he not have been supplementing? must we not have been supplementing? must you not have been supplementing? must they not have been supplementing?