English verb conjugation MUST DESPAIR

Regular verb: despair - despaired - despaired

Affirmation

Simple form

I must despair
you must despair
he must despair
we must despair
you must despair
they must despair

V-ing form

I must be despairing
you must be despairing
he must be despairing
we must be despairing
you must be despairing
they must be despairing

Perfect

I must have despaired
you must have despaired
he must have despaired
we must have despaired
you must have despaired
they must have despaired

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I despair?
must you despair?
must he despair?
must we despair?
must you despair?
must they despair?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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