English verb conjugation MUST CROON

Regular verb: croon - crooned - crooned

Affirmation

Simple form

I must croon
you must croon
he must croon
we must croon
you must croon
they must croon

V-ing form

I must be crooning
you must be crooning
he must be crooning
we must be crooning
you must be crooning
they must be crooning

Perfect

I must have crooned
you must have crooned
he must have crooned
we must have crooned
you must have crooned
they must have crooned

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I croon?
must you croon?
must he croon?
must we croon?
must you croon?
must they croon?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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