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 must not upgrade
you must not upgrade
she must not upgrade
we must not upgrade
you must not upgrade
they must not upgrade 	I must not be upgrading
you must not be upgrading
she must not be upgrading
we must not be upgrading
you must not be upgrading
they must not be upgrading	I must not have upgraded
you must not have upgraded
she must not have upgraded
we must not have upgraded
you must not have upgraded
they must not have upgraded	I must not have been upgrading
you must not have been upgrading
she must not have been upgrading
we must not have been upgrading
you must not have been upgrading
they must not 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 	
must I not upgrade?
must you not upgrade?
must she not upgrade?
must we not upgrade?
must you not upgrade?
must they not upgrade? 	must I not be upgrading?
must you not be upgrading?
must she not be upgrading?
must we not be upgrading?
must you not be upgrading?
must they not be upgrading? 	must I not have upgraded?
must you not have upgraded?
must she not have upgraded?
must we not have upgraded?
must you not have upgraded?
must they not have upgraded? 	must I not have been upgrading?
must you not have been upgrading?
must she not have been upgrading?
must we not have been upgrading?
must you not have been upgrading?
must they not have been upgrading?