Conjugação do verbo inglês
MUST BACKGROUND

Verbo regular: background - backgrounded - backgrounded

Afirmação

Forma simple	Forma com 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
Perfeito	Perfeito com 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

Negação

Forma simple	Forma com V-ing
I mustn't background you mustn't background he mustn't background we mustn't background you mustn't background they mustn't background	I mustn't be backgrounding you mustn't be backgrounding he mustn't be backgrounding we mustn't be backgrounding you mustn't be backgrounding they mustn't be backgrounding
Perfeito	Perfeito com V-ing
I mustn't have backgrounded you mustn't have backgrounded he mustn't have backgrounded we mustn't have backgrounded you mustn't have backgrounded they mustn't have backgrounded	I mustn't have been backgrounding you mustn't have been backgrounding he mustn't have been backgrounding we mustn't have been backgrounding you mustn't have been backgrounding they mustn't have been backgrounding

Forma interrogativa

Forma simple	Forma com 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?
Perfeito	Perfeito com 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?

Forma interro-Negação

Forma simple	Forma com V-ing
mustn't I background? mustn't you background? mustn't he background? mustn't we background? mustn't you background? mustn't they background?	mustn't I be backgrounding? mustn't you be backgrounding? mustn't he be backgrounding? mustn't we be backgrounding? mustn't you be backgrounding? mustn't they be backgrounding?
Perfeito	Perfeito com V-ing
mustn't I have backgrounded? mustn't you have backgrounded? mustn't he have backgrounded? mustn't we have backgrounded? mustn't you have backgrounded? mustn't they have backgrounded?	mustn't I have been backgrounding? mustn't you have been backgrounding? mustn't he have been backgrounding? mustn't we have been backgrounding? mustn't you have been backgrounding? mustn't they have been backgrounding?