may upgrade
Verbe régulier : upgrade - upgraded- upgraded
Traduction française : améliorer - passer à un système plus puissant 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I may upgrade
you may upgrade
he may upgrade
we may upgrade
you may upgrade
they may upgrade 	I may be upgrading
you may be upgrading
he may be upgrading
we may be upgrading
you may be upgrading
they may be upgrading	I may have upgraded
you may have upgraded
he 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
he may have been upgrading
we may have been upgrading
you may have been upgrading
they may have been upgrading	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mayn't upgrade
you mayn't upgrade
he 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
he 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
he 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
he mayn't have been upgrading
we mayn't have been upgrading
you mayn't have been upgrading
they mayn't have been upgrading	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
may I upgrade?
may you upgrade?
may he upgrade?
may we upgrade?
may you upgrade?
may they upgrade? 	may I be upgrading?
may you be upgrading?
may he be upgrading?
may we be upgrading?
may you be upgrading?
may they be upgrading? 	may I have upgraded?
may you have upgraded?
may he 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 he have been upgrading?
may we have been upgrading?
may you have been upgrading?
may they have been upgrading? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mayn't I upgrade?
mayn't you upgrade?
mayn't he 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 he 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 he 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 he have been upgrading?
mayn't we have been upgrading?
mayn't you have been upgrading?
mayn't they have been upgrading?