English verb conjugation MUST GROUND

Regular verb: ground - grounded - grounded

Affirmation

Simple form

I must ground
you must ground
she must ground
we must ground
you must ground
they must ground

V-ing form

I must be grounding
you must be grounding
she must be grounding
we must be grounding
you must be grounding
they must be grounding

Perfect

I must have grounded
you must have grounded
she must have grounded
we must have grounded
you must have grounded
they must have grounded

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I ground?
must you ground?
must she ground?
must we ground?
must you ground?
must they ground?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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