English verb conjugation MUST HEADBUTT

Regular verb: headbutt - headbutted - headbutted

Affirmation

Simple form

I must headbutt
you must headbutt
he must headbutt
we must headbutt
you must headbutt
they must headbutt

V-ing form

I must be headbutting
you must be headbutting
he must be headbutting
we must be headbutting
you must be headbutting
they must be headbutting

Perfect

I must have headbutted
you must have headbutted
he must have headbutted
we must have headbutted
you must have headbutted
they must have headbutted

V-ing perfect

I must have been headbutting
you must have been headbutting
he must have been headbutting
we must have been headbutting
you must have been headbutting
they must have been headbutting

Negation

Simple form

I must not headbutt
you must not headbutt
he must not headbutt
we must not headbutt
you must not headbutt
they must not headbutt

V-ing form

I must not be headbutting
you must not be headbutting
he must not be headbutting
we must not be headbutting
you must not be headbutting
they must not be headbutting

Perfect

I must not have headbutted
you must not have headbutted
he must not have headbutted
we must not have headbutted
you must not have headbutted
they must not have headbutted

V-ing perfect

I must not have been headbutting
you must not have been headbutting
he must not have been headbutting
we must not have been headbutting
you must not have been headbutting
they must not have been headbutting

Interrogative form

Simple form

must I headbutt?
must you headbutt?
must he headbutt?
must we headbutt?
must you headbutt?
must they headbutt?

V-ing form

must I be headbutting?
must you be headbutting?
must he be headbutting?
must we be headbutting?
must you be headbutting?
must they be headbutting?

Perfect

must I have headbutted?
must you have headbutted?
must he have headbutted?
must we have headbutted?
must you have headbutted?
must they have headbutted?

V-ing perfect

must I have been headbutting?
must you have been headbutting?
must he have been headbutting?
must we have been headbutting?
must you have been headbutting?
must they have been headbutting?

Interro-negative form

Simple form

must I not headbutt?
must you not headbutt?
must he not headbutt?
must we not headbutt?
must you not headbutt?
must they not headbutt?

V-ing form

must I not be headbutting?
must you not be headbutting?
must he not be headbutting?
must we not be headbutting?
must you not be headbutting?
must they not be headbutting?

Perfect

must I not have headbutted?
must you not have headbutted?
must he not have headbutted?
must we not have headbutted?
must you not have headbutted?
must they not have headbutted?

V-ing perfect

must I not have been headbutting?
must you not have been headbutting?
must he not have been headbutting?
must we not have been headbutting?
must you not have been headbutting?
must they not have been headbutting?

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