English verb conjugation MUST GRAVE

Regular verb: grave - graved - graved

Affirmation

Simple form

I must grave
you must grave
he must grave
we must grave
you must grave
they must grave

V-ing form

I must be graving
you must be graving
he must be graving
we must be graving
you must be graving
they must be graving

Perfect

I must have graved
you must have graved
he must have graved
we must have graved
you must have graved
they must have graved

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I grave?
must you grave?
must he grave?
must we grave?
must you grave?
must they grave?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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