must scroll
Verbo regular: scroll - scrolled- scrolled

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must scroll
you must scroll
she must scroll
we must scroll
you must scroll
they must scroll 	I must be scrolling
you must be scrolling
she must be scrolling
we must be scrolling
you must be scrolling
they must be scrolling	I must have scrolled
you must have scrolled
she must have scrolled
we must have scrolled
you must have scrolled
they must have scrolled	I must have been scrolling
you must have been scrolling
she must have been scrolling
we must have been scrolling
you must have been scrolling
they must have been scrolling	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I mustn't scroll
you mustn't scroll
she mustn't scroll
we mustn't scroll
you mustn't scroll
they mustn't scroll 	I mustn't be scrolling
you mustn't be scrolling
she mustn't be scrolling
we mustn't be scrolling
you mustn't be scrolling
they mustn't be scrolling	I mustn't have scrolled
you mustn't have scrolled
she mustn't have scrolled
we mustn't have scrolled
you mustn't have scrolled
they mustn't have scrolled	I mustn't have been scrolling
you mustn't have been scrolling
she mustn't have been scrolling
we mustn't have been scrolling
you mustn't have been scrolling
they mustn't have been scrolling	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I scroll?
must you scroll?
must she scroll?
must we scroll?
must you scroll?
must they scroll? 	must I be scrolling?
must you be scrolling?
must she be scrolling?
must we be scrolling?
must you be scrolling?
must they be scrolling? 	must I have scrolled?
must you have scrolled?
must she have scrolled?
must we have scrolled?
must you have scrolled?
must they have scrolled? 	must I have been scrolling?
must you have been scrolling?
must she have been scrolling?
must we have been scrolling?
must you have been scrolling?
must they have been scrolling? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
mustn't I scroll?
mustn't you scroll?
mustn't she scroll?
mustn't we scroll?
mustn't you scroll?
mustn't they scroll? 	mustn't I be scrolling?
mustn't you be scrolling?
mustn't she be scrolling?
mustn't we be scrolling?
mustn't you be scrolling?
mustn't they be scrolling? 	mustn't I have scrolled?
mustn't you have scrolled?
mustn't she have scrolled?
mustn't we have scrolled?
mustn't you have scrolled?
mustn't they have scrolled? 	mustn't I have been scrolling?
mustn't you have been scrolling?
mustn't she have been scrolling?
mustn't we have been scrolling?
mustn't you have been scrolling?
mustn't they have been scrolling?