English verb conjugation
MAY HEADBUTT

Regular verb: headbutt - headbutted - headbutted

Affirmation

Simple form	V-ing form
I may headbutt you may headbutt she may headbutt we may headbutt you may headbutt they may headbutt	I may be headbutting you may be headbutting she may be headbutting we may be headbutting you may be headbutting they may be headbutting
Perfect	V-ing perfect
I may have headbutted you may have headbutted she may have headbutted we may have headbutted you may have headbutted they may have headbutted	I may have been headbutting you may have been headbutting she may have been headbutting we may have been headbutting you may have been headbutting they may have been headbutting

Negation

Simple form	V-ing form
I may not headbutt you may not headbutt she may not headbutt we may not headbutt you may not headbutt they may not headbutt	I may not be headbutting you may not be headbutting she may not be headbutting we may not be headbutting you may not be headbutting they may not be headbutting
Perfect	V-ing perfect
I may not have headbutted you may not have headbutted she may not have headbutted we may not have headbutted you may not have headbutted they may not have headbutted	I may not have been headbutting you may not have been headbutting she may not have been headbutting we may not have been headbutting you may not have been headbutting they may not have been headbutting

Interrogative form

Simple form	V-ing form
may I headbutt? may you headbutt? may she headbutt? may we headbutt? may you headbutt? may they headbutt?	may I be headbutting? may you be headbutting? may she be headbutting? may we be headbutting? may you be headbutting? may they be headbutting?
Perfect	V-ing perfect
may I have headbutted? may you have headbutted? may she have headbutted? may we have headbutted? may you have headbutted? may they have headbutted?	may I have been headbutting? may you have been headbutting? may she have been headbutting? may we have been headbutting? may you have been headbutting? may they have been headbutting?

Interro-negative form

Simple form	V-ing form
may I not headbutt? may you not headbutt? may she not headbutt? may we not headbutt? may you not headbutt? may they not headbutt?	may I not be headbutting? may you not be headbutting? may she not be headbutting? may we not be headbutting? may you not be headbutting? may they not be headbutting?
Perfect	V-ing perfect
may I not have headbutted? may you not have headbutted? may she not have headbutted? may we not have headbutted? may you not have headbutted? may they not have headbutted?	may I not have been headbutting? may you not have been headbutting? may she not have been headbutting? may we not have been headbutting? may you not have been headbutting? may they not have been headbutting?