English verb conjugation MUST CRATER

Regular verb: crater - cratered - cratered

Affirmation

Simple form

I must crater
you must crater
he must crater
we must crater
you must crater
they must crater

V-ing form

I must be cratering
you must be cratering
he must be cratering
we must be cratering
you must be cratering
they must be cratering

Perfect

I must have cratered
you must have cratered
he must have cratered
we must have cratered
you must have cratered
they must have cratered

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I crater?
must you crater?
must he crater?
must we crater?
must you crater?
must they crater?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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