English verb conjugation MUST UPHEAVE

Regular verb: upheave - upheaved - upheaved

Affirmation

Simple form

I must upheave
you must upheave
he must upheave
we must upheave
you must upheave
they must upheave

V-ing form

I must be upheaving
you must be upheaving
he must be upheaving
we must be upheaving
you must be upheaving
they must be upheaving

Perfect

I must have upheaved
you must have upheaved
he must have upheaved
we must have upheaved
you must have upheaved
they must have upheaved

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I upheave?
must you upheave?
must he upheave?
must we upheave?
must you upheave?
must they upheave?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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