Conjugação do verbo inglês
CAN HEADBUTT

Verbo regular: headbutt - headbutted - headbutted

Afirmação

Forma simple	Forma com V-ing
I can headbutt you can headbutt she can headbutt we can headbutt you can headbutt they can headbutt	I can be headbutting you can be headbutting she can be headbutting we can be headbutting you can be headbutting they can be headbutting
Perfeito	Perfeito com V-ing
I can have headbutted you can have headbutted she can have headbutted we can have headbutted you can have headbutted they can have headbutted	I can have been headbutting you can have been headbutting she can have been headbutting we can have been headbutting you can have been headbutting they can have been headbutting

Negação

Forma simple	Forma com V-ing
I cannot headbutt you cannot headbutt she cannot headbutt we cannot headbutt you cannot headbutt they cannot headbutt	I cannot be headbutting you cannot be headbutting she cannot be headbutting we cannot be headbutting you cannot be headbutting they cannot be headbutting
Perfeito	Perfeito com V-ing
I cannot have headbutted you cannot have headbutted she cannot have headbutted we cannot have headbutted you cannot have headbutted they cannot have headbutted	I cannot have been headbutting you cannot have been headbutting she cannot have been headbutting we cannot have been headbutting you cannot have been headbutting they cannot have been headbutting

Forma interrogativa

Forma simple	Forma com V-ing
can I headbutt? can you headbutt? can she headbutt? can we headbutt? can you headbutt? can they headbutt?	can I be headbutting? can you be headbutting? can she be headbutting? can we be headbutting? can you be headbutting? can they be headbutting?
Perfeito	Perfeito com V-ing
can I have headbutted? can you have headbutted? can she have headbutted? can we have headbutted? can you have headbutted? can they have headbutted?	can I have been headbutting? can you have been headbutting? can she have been headbutting? can we have been headbutting? can you have been headbutting? can they have been headbutting?

Forma interro-Negação

Forma simple	Forma com V-ing
can I not headbutt? can you not headbutt? can she not headbutt? can we not headbutt? can you not headbutt? can they not headbutt?	can I not be headbutting? can you not be headbutting? can she not be headbutting? can we not be headbutting? can you not be headbutting? can they not be headbutting?
Perfeito	Perfeito com V-ing
can I not have headbutted? can you not have headbutted? can she not have headbutted? can we not have headbutted? can you not have headbutted? can they not have headbutted?	can I not have been headbutting? can you not have been headbutting? can she not have been headbutting? can we not have been headbutting? can you not have been headbutting? can they not have been headbutting?