might headbutt
Regular verb: headbutt - headbutted- headbutted

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

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mightn't headbutt
you mightn't headbutt
she mightn't headbutt
we mightn't headbutt
you mightn't headbutt
they mightn't headbutt 	I mightn't be headbutting
you mightn't be headbutting
she mightn't be headbutting
we mightn't be headbutting
you mightn't be headbutting
they mightn't be headbutting	I mightn't have headbutted
you mightn't have headbutted
she mightn't have headbutted
we mightn't have headbutted
you mightn't have headbutted
they mightn't have headbutted	I mightn't have been headbutting
you mightn't have been headbutting
she mightn't have been headbutting
we mightn't have been headbutting
you mightn't have been headbutting
they mightn't have been headbutting	

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

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mightn't I headbutt?
mightn't you headbutt?
mightn't she headbutt?
mightn't we headbutt?
mightn't you headbutt?
mightn't they headbutt? 	mightn't I be headbutting?
mightn't you be headbutting?
mightn't she be headbutting?
mightn't we be headbutting?
mightn't you be headbutting?
mightn't they be headbutting? 	mightn't I have headbutted?
mightn't you have headbutted?
mightn't she have headbutted?
mightn't we have headbutted?
mightn't you have headbutted?
mightn't they have headbutted? 	mightn't I have been headbutting?
mightn't you have been headbutting?
mightn't she have been headbutting?
mightn't we have been headbutting?
mightn't you have been headbutting?
mightn't they have been headbutting?