English verb conjugation MUST ROOST

Regular verb: roost - roosted - roosted

Affirmation

Simple form

I must roost
you must roost
he must roost
we must roost
you must roost
they must roost

V-ing form

I must be roosting
you must be roosting
he must be roosting
we must be roosting
you must be roosting
they must be roosting

Perfect

I must have roosted
you must have roosted
he must have roosted
we must have roosted
you must have roosted
they must have roosted

V-ing perfect

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

Negation

Simple form

I mustn't roost
you mustn't roost
he mustn't roost
we mustn't roost
you mustn't roost
they mustn't roost

V-ing form

I mustn't be roosting
you mustn't be roosting
he mustn't be roosting
we mustn't be roosting
you mustn't be roosting
they mustn't be roosting

Perfect

I mustn't have roosted
you mustn't have roosted
he mustn't have roosted
we mustn't have roosted
you mustn't have roosted
they mustn't have roosted

V-ing perfect

I mustn't have been roosting
you mustn't have been roosting
he mustn't have been roosting
we mustn't have been roosting
you mustn't have been roosting
they mustn't have been roosting

Interrogative form

Simple form

must I roost?
must you roost?
must he roost?
must we roost?
must you roost?
must they roost?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

mustn't I roost?
mustn't you roost?
mustn't he roost?
mustn't we roost?
mustn't you roost?
mustn't they roost?

V-ing form

mustn't I be roosting?
mustn't you be roosting?
mustn't he be roosting?
mustn't we be roosting?
mustn't you be roosting?
mustn't they be roosting?

Perfect

mustn't I have roosted?
mustn't you have roosted?
mustn't he have roosted?
mustn't we have roosted?
mustn't you have roosted?
mustn't they have roosted?

V-ing perfect

mustn't I have been roosting?
mustn't you have been roosting?
mustn't he have been roosting?
mustn't we have been roosting?
mustn't you have been roosting?
mustn't they have been roosting?

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