English verb conjugation
MAY UPGRADE

Regular verb: upgrade - upgraded - upgraded

Affirmation

Simple form	V-ing form
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
Perfect	V-ing perfect
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

Negation

Simple form	V-ing form
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
Perfect	V-ing perfect
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

Interrogative form

Simple form	V-ing form
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?
Perfect	V-ing perfect
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?

Interro-negative form

Simple form	V-ing form
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?
Perfect	V-ing perfect
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?