English verb conjugation
MAY AUTHENTICATE

Regular verb: authenticate - authenticated - authenticated

Affirmation

Simple form	V-ing form
I may authenticate you may authenticate she may authenticate we may authenticate you may authenticate they may authenticate	I may be authenticating you may be authenticating she may be authenticating we may be authenticating you may be authenticating they may be authenticating
Perfect	V-ing perfect
I may have authenticated you may have authenticated she may have authenticated we may have authenticated you may have authenticated they may have authenticated	I may have been authenticating you may have been authenticating she may have been authenticating we may have been authenticating you may have been authenticating they may have been authenticating

Negation

Simple form	V-ing form
I may not authenticate you may not authenticate she may not authenticate we may not authenticate you may not authenticate they may not authenticate	I may not be authenticating you may not be authenticating she may not be authenticating we may not be authenticating you may not be authenticating they may not be authenticating
Perfect	V-ing perfect
I may not have authenticated you may not have authenticated she may not have authenticated we may not have authenticated you may not have authenticated they may not have authenticated	I may not have been authenticating you may not have been authenticating she may not have been authenticating we may not have been authenticating you may not have been authenticating they may not have been authenticating

Interrogative form

Simple form	V-ing form
may I authenticate? may you authenticate? may she authenticate? may we authenticate? may you authenticate? may they authenticate?	may I be authenticating? may you be authenticating? may she be authenticating? may we be authenticating? may you be authenticating? may they be authenticating?
Perfect	V-ing perfect
may I have authenticated? may you have authenticated? may she have authenticated? may we have authenticated? may you have authenticated? may they have authenticated?	may I have been authenticating? may you have been authenticating? may she have been authenticating? may we have been authenticating? may you have been authenticating? may they have been authenticating?

Interro-negative form

Simple form	V-ing form
may I not authenticate? may you not authenticate? may she not authenticate? may we not authenticate? may you not authenticate? may they not authenticate?	may I not be authenticating? may you not be authenticating? may she not be authenticating? may we not be authenticating? may you not be authenticating? may they not be authenticating?
Perfect	V-ing perfect
may I not have authenticated? may you not have authenticated? may she not have authenticated? may we not have authenticated? may you not have authenticated? may they not have authenticated?	may I not have been authenticating? may you not have been authenticating? may she not have been authenticating? may we not have been authenticating? may you not have been authenticating? may they not have been authenticating?