English verb conjugation MUST INTERFACE

Regular verb: interface - interfaced - interfaced

Affirmation

Simple form

I must interface
you must interface
he must interface
we must interface
you must interface
they must interface

V-ing form

I must be interfacing
you must be interfacing
he must be interfacing
we must be interfacing
you must be interfacing
they must be interfacing

Perfect

I must have interfaced
you must have interfaced
he must have interfaced
we must have interfaced
you must have interfaced
they must have interfaced

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I interface?
must you interface?
must he interface?
must we interface?
must you interface?
must they interface?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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