English verb conjugation MUST FRUSTRATE

Regular verb: frustrate - frustrated - frustrated

Affirmation

Simple form

I must frustrate
you must frustrate
she must frustrate
we must frustrate
you must frustrate
they must frustrate

V-ing form

I must be frustrating
you must be frustrating
she must be frustrating
we must be frustrating
you must be frustrating
they must be frustrating

Perfect

I must have frustrated
you must have frustrated
she must have frustrated
we must have frustrated
you must have frustrated
they must have frustrated

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I frustrate?
must you frustrate?
must she frustrate?
must we frustrate?
must you frustrate?
must they frustrate?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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