English verb conjugation MUST GRUMP

Regular verb: grump - grumped - grumped

Affirmation

Simple form

I must grump
you must grump
she must grump
we must grump
you must grump
they must grump

V-ing form

I must be grumping
you must be grumping
she must be grumping
we must be grumping
you must be grumping
they must be grumping

Perfect

I must have grumped
you must have grumped
she must have grumped
we must have grumped
you must have grumped
they must have grumped

V-ing perfect

I must have been grumping
you must have been grumping
she must have been grumping
we must have been grumping
you must have been grumping
they must have been grumping

Negation

Simple form

I mustn't grump
you mustn't grump
she mustn't grump
we mustn't grump
you mustn't grump
they mustn't grump

V-ing form

I mustn't be grumping
you mustn't be grumping
she mustn't be grumping
we mustn't be grumping
you mustn't be grumping
they mustn't be grumping

Perfect

I mustn't have grumped
you mustn't have grumped
she mustn't have grumped
we mustn't have grumped
you mustn't have grumped
they mustn't have grumped

V-ing perfect

I mustn't have been grumping
you mustn't have been grumping
she mustn't have been grumping
we mustn't have been grumping
you mustn't have been grumping
they mustn't have been grumping

Interrogative form

Simple form

must I grump?
must you grump?
must she grump?
must we grump?
must you grump?
must they grump?

V-ing form

must I be grumping?
must you be grumping?
must she be grumping?
must we be grumping?
must you be grumping?
must they be grumping?

Perfect

must I have grumped?
must you have grumped?
must she have grumped?
must we have grumped?
must you have grumped?
must they have grumped?

V-ing perfect

must I have been grumping?
must you have been grumping?
must she have been grumping?
must we have been grumping?
must you have been grumping?
must they have been grumping?

Interro-negative form

Simple form

mustn't I grump?
mustn't you grump?
mustn't she grump?
mustn't we grump?
mustn't you grump?
mustn't they grump?

V-ing form

mustn't I be grumping?
mustn't you be grumping?
mustn't she be grumping?
mustn't we be grumping?
mustn't you be grumping?
mustn't they be grumping?

Perfect

mustn't I have grumped?
mustn't you have grumped?
mustn't she have grumped?
mustn't we have grumped?
mustn't you have grumped?
mustn't they have grumped?

V-ing perfect

mustn't I have been grumping?
mustn't you have been grumping?
mustn't she have been grumping?
mustn't we have been grumping?
mustn't you have been grumping?
mustn't they have been grumping?

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