English verb conjugation MUST LIE

Irregular verb: lie - lay - lain


Affirmation

Simple form

I must lie
you must lie
he must lie
we must lie
you must lie
they must lie

V-ing form

I must be lying
you must be lying
he must be lying
we must be lying
you must be lying
they must be lying

Perfect

I must have lain
you must have lain
he must have lain
we must have lain
you must have lain
they must have lain

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I lie?
must you lie?
must he lie?
must we lie?
must you lie?
must they lie?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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