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 must not croon
you must not croon
he must not croon
we must not croon
you must not croon
they must not croon

V-ing form

I must not be crooning
you must not be crooning
he must not be crooning
we must not be crooning
you must not be crooning
they must not be crooning

Perfect

I must not have crooned
you must not have crooned
he must not have crooned
we must not have crooned
you must not have crooned
they must not have crooned

V-ing perfect

I must not have been crooning
you must not have been crooning
he must not have been crooning
we must not have been crooning
you must not have been crooning
they must not 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

must I not croon?
must you not croon?
must he not croon?
must we not croon?
must you not croon?
must they not croon?

V-ing form

must I not be crooning?
must you not be crooning?
must he not be crooning?
must we not be crooning?
must you not be crooning?
must they not be crooning?

Perfect

must I not have crooned?
must you not have crooned?
must he not have crooned?
must we not have crooned?
must you not have crooned?
must they not have crooned?

V-ing perfect

must I not have been crooning?
must you not have been crooning?
must he not have been crooning?
must we not have been crooning?
must you not have been crooning?
must they not have been crooning?

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