English verb conjugation MUST UNDERFEED

Irregular verb: underfeed - underfed - underfed

Affirmation

Simple form

I must underfeed
you must underfeed
he must underfeed
we must underfeed
you must underfeed
they must underfeed

V-ing form

I must be underfeeding
you must be underfeeding
he must be underfeeding
we must be underfeeding
you must be underfeeding
they must be underfeeding

Perfect

I must have underfed
you must have underfed
he must have underfed
we must have underfed
you must have underfed
they must have underfed

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I underfeed?
must you underfeed?
must he underfeed?
must we underfeed?
must you underfeed?
must they underfeed?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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