must upgrade
Verbo regular: upgrade - upgraded- upgraded

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must upgrade
you must upgrade
she must upgrade
we must upgrade
you must upgrade
they must upgrade 	I must be upgrading
you must be upgrading
she must be upgrading
we must be upgrading
you must be upgrading
they must be upgrading	I must have upgraded
you must have upgraded
she must have upgraded
we must have upgraded
you must have upgraded
they must have upgraded	I must have been upgrading
you must have been upgrading
she must have been upgrading
we must have been upgrading
you must have been upgrading
they must have been upgrading	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I mustn't upgrade
you mustn't upgrade
she mustn't upgrade
we mustn't upgrade
you mustn't upgrade
they mustn't upgrade 	I mustn't be upgrading
you mustn't be upgrading
she mustn't be upgrading
we mustn't be upgrading
you mustn't be upgrading
they mustn't be upgrading	I mustn't have upgraded
you mustn't have upgraded
she mustn't have upgraded
we mustn't have upgraded
you mustn't have upgraded
they mustn't have upgraded	I mustn't have been upgrading
you mustn't have been upgrading
she mustn't have been upgrading
we mustn't have been upgrading
you mustn't have been upgrading
they mustn't have been upgrading	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I upgrade?
must you upgrade?
must she upgrade?
must we upgrade?
must you upgrade?
must they upgrade? 	must I be upgrading?
must you be upgrading?
must she be upgrading?
must we be upgrading?
must you be upgrading?
must they be upgrading? 	must I have upgraded?
must you have upgraded?
must she have upgraded?
must we have upgraded?
must you have upgraded?
must they have upgraded? 	must I have been upgrading?
must you have been upgrading?
must she have been upgrading?
must we have been upgrading?
must you have been upgrading?
must they have been upgrading? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
mustn't I upgrade?
mustn't you upgrade?
mustn't she upgrade?
mustn't we upgrade?
mustn't you upgrade?
mustn't they upgrade? 	mustn't I be upgrading?
mustn't you be upgrading?
mustn't she be upgrading?
mustn't we be upgrading?
mustn't you be upgrading?
mustn't they be upgrading? 	mustn't I have upgraded?
mustn't you have upgraded?
mustn't she have upgraded?
mustn't we have upgraded?
mustn't you have upgraded?
mustn't they have upgraded? 	mustn't I have been upgrading?
mustn't you have been upgrading?
mustn't she have been upgrading?
mustn't we have been upgrading?
mustn't you have been upgrading?
mustn't they have been upgrading?