English verb conjugation MUST CORK

Regular verb: cork - corked - corked

Affirmation

Simple form

I must cork
you must cork
she must cork
we must cork
you must cork
they must cork

V-ing form

I must be corking
you must be corking
she must be corking
we must be corking
you must be corking
they must be corking

Perfect

I must have corked
you must have corked
she must have corked
we must have corked
you must have corked
they must have corked

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I cork?
must you cork?
must she cork?
must we cork?
must you cork?
must they cork?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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