English verb conjugation MUST CROW

Regular verb: crow - crowed - crowed

Affirmation

Simple form

I must crow
you must crow
she must crow
we must crow
you must crow
they must crow

V-ing form

I must be crowing
you must be crowing
she must be crowing
we must be crowing
you must be crowing
they must be crowing

Perfect

I must have crowed
you must have crowed
she must have crowed
we must have crowed
you must have crowed
they must have crowed

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I crow?
must you crow?
must she crow?
must we crow?
must you crow?
must they crow?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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