English verb conjugation
MAY SUBSTANTIATE

Regular verb: substantiate - substantiated - substantiated

Affirmation

Simple form	V-ing form
I may substantiate you may substantiate she may substantiate we may substantiate you may substantiate they may substantiate	I may be substantiating you may be substantiating she may be substantiating we may be substantiating you may be substantiating they may be substantiating
Perfect	V-ing perfect
I may have substantiated you may have substantiated she may have substantiated we may have substantiated you may have substantiated they may have substantiated	I may have been substantiating you may have been substantiating she may have been substantiating we may have been substantiating you may have been substantiating they may have been substantiating

Negation

Simple form	V-ing form
I mayn't substantiate you mayn't substantiate she mayn't substantiate we mayn't substantiate you mayn't substantiate they mayn't substantiate	I mayn't be substantiating you mayn't be substantiating she mayn't be substantiating we mayn't be substantiating you mayn't be substantiating they mayn't be substantiating
Perfect	V-ing perfect
I mayn't have substantiated you mayn't have substantiated she mayn't have substantiated we mayn't have substantiated you mayn't have substantiated they mayn't have substantiated	I mayn't have been substantiating you mayn't have been substantiating she mayn't have been substantiating we mayn't have been substantiating you mayn't have been substantiating they mayn't have been substantiating

Interrogative form

Simple form	V-ing form
may I substantiate? may you substantiate? may she substantiate? may we substantiate? may you substantiate? may they substantiate?	may I be substantiating? may you be substantiating? may she be substantiating? may we be substantiating? may you be substantiating? may they be substantiating?
Perfect	V-ing perfect
may I have substantiated? may you have substantiated? may she have substantiated? may we have substantiated? may you have substantiated? may they have substantiated?	may I have been substantiating? may you have been substantiating? may she have been substantiating? may we have been substantiating? may you have been substantiating? may they have been substantiating?

Interro-negative form

Simple form	V-ing form
mayn't I substantiate? mayn't you substantiate? mayn't she substantiate? mayn't we substantiate? mayn't you substantiate? mayn't they substantiate?	mayn't I be substantiating? mayn't you be substantiating? mayn't she be substantiating? mayn't we be substantiating? mayn't you be substantiating? mayn't they be substantiating?
Perfect	V-ing perfect
mayn't I have substantiated? mayn't you have substantiated? mayn't she have substantiated? mayn't we have substantiated? mayn't you have substantiated? mayn't they have substantiated?	mayn't I have been substantiating? mayn't you have been substantiating? mayn't she have been substantiating? mayn't we have been substantiating? mayn't you have been substantiating? mayn't they have been substantiating?