English verb conjugation MUST OBSTRUCT

Regular verb: obstruct - obstructed - obstructed

Affirmation

Simple form

I must obstruct
you must obstruct
he must obstruct
we must obstruct
you must obstruct
they must obstruct

V-ing form

I must be obstructing
you must be obstructing
he must be obstructing
we must be obstructing
you must be obstructing
they must be obstructing

Perfect

I must have obstructed
you must have obstructed
he must have obstructed
we must have obstructed
you must have obstructed
they must have obstructed

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I obstruct?
must you obstruct?
must he obstruct?
must we obstruct?
must you obstruct?
must they obstruct?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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