may upgrade
Verbo regular: upgrade - upgraded- upgraded

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

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I may not upgrade
you may not upgrade
she may not upgrade
we may not upgrade
you may not upgrade
they may not upgrade 	I may not be upgrading
you may not be upgrading
she may not be upgrading
we may not be upgrading
you may not be upgrading
they may not be upgrading	I may not have upgraded
you may not have upgraded
she may not have upgraded
we may not have upgraded
you may not have upgraded
they may not have upgraded	I may not have been upgrading
you may not have been upgrading
she may not have been upgrading
we may not have been upgrading
you may not have been upgrading
they may not have been upgrading	

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

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