English verb conjugation MUST YES

Regular verb: yes - yesed - yesed

Affirmation

Simple form

I must yes
you must yes
he must yes
we must yes
you must yes
they must yes

V-ing form

I must be yesing
you must be yesing
he must be yesing
we must be yesing
you must be yesing
they must be yesing

Perfect

I must have yesed
you must have yesed
he must have yesed
we must have yesed
you must have yesed
they must have yesed

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I yes?
must you yes?
must he yes?
must we yes?
must you yes?
must they yes?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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