English verb conjugation MUST CRASH

Regular verb: crash - crashed - crashed

Affirmation

Simple form

I must crash
you must crash
she must crash
we must crash
you must crash
they must crash

V-ing form

I must be crashing
you must be crashing
she must be crashing
we must be crashing
you must be crashing
they must be crashing

Perfect

I must have crashed
you must have crashed
she must have crashed
we must have crashed
you must have crashed
they must have crashed

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I crash?
must you crash?
must she crash?
must we crash?
must you crash?
must they crash?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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