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

English verb conjugation COULD FRUSTRATE

Regular verb: frustrate - frustrated - frustrated


Affirmation

Simple form
I could frustrate
you could frustrate
he could frustrate
we could frustrate
you could frustrate
they could frustrate
V-ing form
I could be frustrating
you could be frustrating
he could be frustrating
we could be frustrating
you could be frustrating
they could be frustrating
Perfect
I could have frustrated
you could have frustrated
he could have frustrated
we could have frustrated
you could have frustrated
they could have frustrated
V-ing perfect
I could have been frustrating
you could have been frustrating
he could have been frustrating
we could have been frustrating
you could have been frustrating
they could have been frustrating

Negation

Simple form
I could not frustrate
you could not frustrate
he could not frustrate
we could not frustrate
you could not frustrate
they could not frustrate
V-ing form
I could not be frustrating
you could not be frustrating
he could not be frustrating
we could not be frustrating
you could not be frustrating
they could not be frustrating
Perfect
I could not have frustrated
you could not have frustrated
he could not have frustrated
we could not have frustrated
you could not have frustrated
they could not have frustrated
V-ing perfect
I could not have been frustrating
you could not have been frustrating
he could not have been frustrating
we could not have been frustrating
you could not have been frustrating
they could not have been frustrating

Interrogative form

Simple form
could I frustrate?
could you frustrate?
could he frustrate?
could we frustrate?
could you frustrate?
could they frustrate?
V-ing form
could I be frustrating?
could you be frustrating?
could he be frustrating?
could we be frustrating?
could you be frustrating?
could they be frustrating?
Perfect
could I have frustrated?
could you have frustrated?
could he have frustrated?
could we have frustrated?
could you have frustrated?
could they have frustrated?
V-ing perfect
could I have been frustrating?
could you have been frustrating?
could he have been frustrating?
could we have been frustrating?
could you have been frustrating?
could they have been frustrating?

Interro-negative form

Simple form
could I not frustrate?
could you not frustrate?
could he not frustrate?
could we not frustrate?
could you not frustrate?
could they not frustrate?
V-ing form
could I not be frustrating?
could you not be frustrating?
could he not be frustrating?
could we not be frustrating?
could you not be frustrating?
could they not be frustrating?
Perfect
could I not have frustrated?
could you not have frustrated?
could he not have frustrated?
could we not have frustrated?
could you not have frustrated?
could they not have frustrated?
V-ing perfect
could I not have been frustrating?
could you not have been frustrating?
could he not have been frustrating?
could we not have been frustrating?
could you not have been frustrating?
could they not have been frustrating?