English verb conjugation COULD HARKEN

Regular verb: harken - harkened - harkened

Affirmation

Simple form

I could harken
you could harken
he could harken
we could harken
you could harken
they could harken

V-ing form

I could be harkening
you could be harkening
he could be harkening
we could be harkening
you could be harkening
they could be harkening

Perfect

I could have harkened
you could have harkened
he could have harkened
we could have harkened
you could have harkened
they could have harkened

V-ing perfect

I could have been harkening
you could have been harkening
he could have been harkening
we could have been harkening
you could have been harkening
they could have been harkening

Negation

Simple form

I could not harken
you could not harken
he could not harken
we could not harken
you could not harken
they could not harken

V-ing form

I could not be harkening
you could not be harkening
he could not be harkening
we could not be harkening
you could not be harkening
they could not be harkening

Perfect

I could not have harkened
you could not have harkened
he could not have harkened
we could not have harkened
you could not have harkened
they could not have harkened

V-ing perfect

I could not have been harkening
you could not have been harkening
he could not have been harkening
we could not have been harkening
you could not have been harkening
they could not have been harkening

Interrogative form

Simple form

could I harken?
could you harken?
could he harken?
could we harken?
could you harken?
could they harken?

V-ing form

could I be harkening?
could you be harkening?
could he be harkening?
could we be harkening?
could you be harkening?
could they be harkening?

Perfect

could I have harkened?
could you have harkened?
could he have harkened?
could we have harkened?
could you have harkened?
could they have harkened?

V-ing perfect

could I have been harkening?
could you have been harkening?
could he have been harkening?
could we have been harkening?
could you have been harkening?
could they have been harkening?

Interro-negative form

Simple form

could I not harken?
could you not harken?
could he not harken?
could we not harken?
could you not harken?
could they not harken?

V-ing form

could I not be harkening?
could you not be harkening?
could he not be harkening?
could we not be harkening?
could you not be harkening?
could they not be harkening?

Perfect

could I not have harkened?
could you not have harkened?
could he not have harkened?
could we not have harkened?
could you not have harkened?
could they not have harkened?

V-ing perfect

could I not have been harkening?
could you not have been harkening?
could he not have been harkening?
could we not have been harkening?
could you not have been harkening?
could they not have been harkening?

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