English verb conjugation MUST HARKEN

Regular verb: harken - harkened - harkened

Affirmation

Simple form

I must harken
you must harken
she must harken
we must harken
you must harken
they must harken

V-ing form

I must be harkening
you must be harkening
she must be harkening
we must be harkening
you must be harkening
they must be harkening

Perfect

I must have harkened
you must have harkened
she must have harkened
we must have harkened
you must have harkened
they must have harkened

V-ing perfect

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

Negation

Simple form

I must not harken
you must not harken
she must not harken
we must not harken
you must not harken
they must not harken

V-ing form

I must not be harkening
you must not be harkening
she must not be harkening
we must not be harkening
you must not be harkening
they must not be harkening

Perfect

I must not have harkened
you must not have harkened
she must not have harkened
we must not have harkened
you must not have harkened
they must not have harkened

V-ing perfect

I must not have been harkening
you must not have been harkening
she must not have been harkening
we must not have been harkening
you must not have been harkening
they must not have been harkening

Interrogative form

Simple form

must I harken?
must you harken?
must she harken?
must we harken?
must you harken?
must they harken?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

must I not harken?
must you not harken?
must she not harken?
must we not harken?
must you not harken?
must they not harken?

V-ing form

must I not be harkening?
must you not be harkening?
must she not be harkening?
must we not be harkening?
must you not be harkening?
must they not be harkening?

Perfect

must I not have harkened?
must you not have harkened?
must she not have harkened?
must we not have harkened?
must you not have harkened?
must they not have harkened?

V-ing perfect

must I not have been harkening?
must you not have been harkening?
must she not have been harkening?
must we not have been harkening?
must you not have been harkening?
must they not have been harkening?

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