logo

male gender | Modal : no | may | might | can | could | shall | should | will | would | must | ought to

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 must not frustrate
you must not frustrate
she must not frustrate
we must not frustrate
you must not frustrate
they must not frustrate
V-ing form
I must not be frustrating
you must not be frustrating
she must not be frustrating
we must not be frustrating
you must not be frustrating
they must not be frustrating
Perfect
I must not have frustrated
you must not have frustrated
she must not have frustrated
we must not have frustrated
you must not have frustrated
they must not have frustrated
V-ing perfect
I must not have been frustrating
you must not have been frustrating
she must not have been frustrating
we must not have been frustrating
you must not have been frustrating
they must not 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
must I not frustrate?
must you not frustrate?
must she not frustrate?
must we not frustrate?
must you not frustrate?
must they not frustrate?
V-ing form
must I not be frustrating?
must you not be frustrating?
must she not be frustrating?
must we not be frustrating?
must you not be frustrating?
must they not be frustrating?
Perfect
must I not have frustrated?
must you not have frustrated?
must she not have frustrated?
must we not have frustrated?
must you not have frustrated?
must they not have frustrated?
V-ing perfect
must I not have been frustrating?
must you not have been frustrating?
must she not have been frustrating?
must we not have been frustrating?
must you not have been frustrating?
must they not have been frustrating?