English verb conjugation MUST UNDERWORK

Regular verb: underwork - underworked - underworked

Affirmation

Simple form

I must underwork
you must underwork
he must underwork
we must underwork
you must underwork
they must underwork

V-ing form

I must be underworking
you must be underworking
he must be underworking
we must be underworking
you must be underworking
they must be underworking

Perfect

I must have underworked
you must have underworked
he must have underworked
we must have underworked
you must have underworked
they must have underworked

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I underwork?
must you underwork?
must he underwork?
must we underwork?
must you underwork?
must they underwork?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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