Conjugaison du verbe anglais
MUST BACKGROUND

Verbe régulier : background - backgrounded - backgrounded

Affirmation

Forme simple	Forme en V-ing
I must background you must background he must background we must background you must background they must background	I must be backgrounding you must be backgrounding he must be backgrounding we must be backgrounding you must be backgrounding they must be backgrounding
Perfect	Perfect en V-ing
I must have backgrounded you must have backgrounded he must have backgrounded we must have backgrounded you must have backgrounded they must have backgrounded	I must have been backgrounding you must have been backgrounding he must have been backgrounding we must have been backgrounding you must have been backgrounding they must have been backgrounding

Négation

Forme simple	Forme en V-ing
I must not background you must not background he must not background we must not background you must not background they must not background	I must not be backgrounding you must not be backgrounding he must not be backgrounding we must not be backgrounding you must not be backgrounding they must not be backgrounding
Perfect	Perfect en V-ing
I must not have backgrounded you must not have backgrounded he must not have backgrounded we must not have backgrounded you must not have backgrounded they must not have backgrounded	I must not have been backgrounding you must not have been backgrounding he must not have been backgrounding we must not have been backgrounding you must not have been backgrounding they must not have been backgrounding

Forme interrogative

Forme simple	Forme en V-ing
must I background? must you background? must he background? must we background? must you background? must they background?	must I be backgrounding? must you be backgrounding? must he be backgrounding? must we be backgrounding? must you be backgrounding? must they be backgrounding?
Perfect	Perfect en V-ing
must I have backgrounded? must you have backgrounded? must he have backgrounded? must we have backgrounded? must you have backgrounded? must they have backgrounded?	must I have been backgrounding? must you have been backgrounding? must he have been backgrounding? must we have been backgrounding? must you have been backgrounding? must they have been backgrounding?

Forme interro-négative

Forme simple	Forme en V-ing
must I not background? must you not background? must he not background? must we not background? must you not background? must they not background?	must I not be backgrounding? must you not be backgrounding? must he not be backgrounding? must we not be backgrounding? must you not be backgrounding? must they not be backgrounding?
Perfect	Perfect en V-ing
must I not have backgrounded? must you not have backgrounded? must he not have backgrounded? must we not have backgrounded? must you not have backgrounded? must they not have backgrounded?	must I not have been backgrounding? must you not have been backgrounding? must he not have been backgrounding? must we not have been backgrounding? must you not have been backgrounding? must they not have been backgrounding?