English verb conjugation
MUST SUPPLEMENT

Regular verb: supplement - supplemented - supplemented

Affirmation

Simple form	V-ing form
I must supplement you must supplement she must supplement we must supplement you must supplement they must supplement	I must be supplementing you must be supplementing she 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 she 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 she 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 mustn't supplement you mustn't supplement she mustn't supplement we mustn't supplement you mustn't supplement they mustn't supplement	I mustn't be supplementing you mustn't be supplementing she mustn't be supplementing we mustn't be supplementing you mustn't be supplementing they mustn't be supplementing
Perfect	V-ing perfect
I mustn't have supplemented you mustn't have supplemented she mustn't have supplemented we mustn't have supplemented you mustn't have supplemented they mustn't have supplemented	I mustn't have been supplementing you mustn't have been supplementing she mustn't have been supplementing we mustn't have been supplementing you mustn't have been supplementing they mustn't have been supplementing

Interrogative form

Simple form	V-ing form
must I supplement? must you supplement? must she supplement? must we supplement? must you supplement? must they supplement?	must I be supplementing? must you be supplementing? must she 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 she 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 she 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
mustn't I supplement? mustn't you supplement? mustn't she supplement? mustn't we supplement? mustn't you supplement? mustn't they supplement?	mustn't I be supplementing? mustn't you be supplementing? mustn't she be supplementing? mustn't we be supplementing? mustn't you be supplementing? mustn't they be supplementing?
Perfect	V-ing perfect
mustn't I have supplemented? mustn't you have supplemented? mustn't she have supplemented? mustn't we have supplemented? mustn't you have supplemented? mustn't they have supplemented?	mustn't I have been supplementing? mustn't you have been supplementing? mustn't she have been supplementing? mustn't we have been supplementing? mustn't you have been supplementing? mustn't they have been supplementing?