English verb conjugation MUST HEAD

Regular verb: head - headed - headed

Affirmation

Simple form

I must head
you must head
she must head
we must head
you must head
they must head

V-ing form

I must be heading
you must be heading
she must be heading
we must be heading
you must be heading
they must be heading

Perfect

I must have headed
you must have headed
she must have headed
we must have headed
you must have headed
they must have headed

V-ing perfect

I must have been heading
you must have been heading
she must have been heading
we must have been heading
you must have been heading
they must have been heading

Negation

Simple form

I mustn't head
you mustn't head
she mustn't head
we mustn't head
you mustn't head
they mustn't head

V-ing form

I mustn't be heading
you mustn't be heading
she mustn't be heading
we mustn't be heading
you mustn't be heading
they mustn't be heading

Perfect

I mustn't have headed
you mustn't have headed
she mustn't have headed
we mustn't have headed
you mustn't have headed
they mustn't have headed

V-ing perfect

I mustn't have been heading
you mustn't have been heading
she mustn't have been heading
we mustn't have been heading
you mustn't have been heading
they mustn't have been heading

Interrogative form

Simple form

must I head?
must you head?
must she head?
must we head?
must you head?
must they head?

V-ing form

must I be heading?
must you be heading?
must she be heading?
must we be heading?
must you be heading?
must they be heading?

Perfect

must I have headed?
must you have headed?
must she have headed?
must we have headed?
must you have headed?
must they have headed?

V-ing perfect

must I have been heading?
must you have been heading?
must she have been heading?
must we have been heading?
must you have been heading?
must they have been heading?

Interro-negative form

Simple form

mustn't I head?
mustn't you head?
mustn't she head?
mustn't we head?
mustn't you head?
mustn't they head?

V-ing form

mustn't I be heading?
mustn't you be heading?
mustn't she be heading?
mustn't we be heading?
mustn't you be heading?
mustn't they be heading?

Perfect

mustn't I have headed?
mustn't you have headed?
mustn't she have headed?
mustn't we have headed?
mustn't you have headed?
mustn't they have headed?

V-ing perfect

mustn't I have been heading?
mustn't you have been heading?
mustn't she have been heading?
mustn't we have been heading?
mustn't you have been heading?
mustn't they have been heading?

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