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 mayn't upgrade
you mayn't upgrade
she mayn't upgrade
we mayn't upgrade
you mayn't upgrade
they mayn't upgrade 	I mayn't be upgrading
you mayn't be upgrading
she mayn't be upgrading
we mayn't be upgrading
you mayn't be upgrading
they mayn't be upgrading	I mayn't have upgraded
you mayn't have upgraded
she mayn't have upgraded
we mayn't have upgraded
you mayn't have upgraded
they mayn't have upgraded	I mayn't have been upgrading
you mayn't have been upgrading
she mayn't have been upgrading
we mayn't have been upgrading
you mayn't have been upgrading
they mayn't 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 	
mayn't I upgrade?
mayn't you upgrade?
mayn't she upgrade?
mayn't we upgrade?
mayn't you upgrade?
mayn't they upgrade? 	mayn't I be upgrading?
mayn't you be upgrading?
mayn't she be upgrading?
mayn't we be upgrading?
mayn't you be upgrading?
mayn't they be upgrading? 	mayn't I have upgraded?
mayn't you have upgraded?
mayn't she have upgraded?
mayn't we have upgraded?
mayn't you have upgraded?
mayn't they have upgraded? 	mayn't I have been upgrading?
mayn't you have been upgrading?
mayn't she have been upgrading?
mayn't we have been upgrading?
mayn't you have been upgrading?
mayn't they have been upgrading?