English verb conjugation MUST UNDERPAY

Irregular verb: underpay - underpaid - underpaid

Affirmation

Simple form

I must underpay
you must underpay
he must underpay
we must underpay
you must underpay
they must underpay

V-ing form

I must be underpaying
you must be underpaying
he must be underpaying
we must be underpaying
you must be underpaying
they must be underpaying

Perfect

I must have underpaid
you must have underpaid
he must have underpaid
we must have underpaid
you must have underpaid
they must have underpaid

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I underpay?
must you underpay?
must he underpay?
must we underpay?
must you underpay?
must they underpay?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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