may headbutt
Regular verb: headbutt - headbutted- headbutted

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