English verb conjugation COULD HARSHEN

Regular verb: harshen - harshened - harshened

Affirmation

Simple form

I could harshen
you could harshen
he could harshen
we could harshen
you could harshen
they could harshen

V-ing form

I could be harshening
you could be harshening
he could be harshening
we could be harshening
you could be harshening
they could be harshening

Perfect

I could have harshened
you could have harshened
he could have harshened
we could have harshened
you could have harshened
they could have harshened

V-ing perfect

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

Negation

Simple form

I couldn't harshen
you couldn't harshen
he couldn't harshen
we couldn't harshen
you couldn't harshen
they couldn't harshen

V-ing form

I couldn't be harshening
you couldn't be harshening
he couldn't be harshening
we couldn't be harshening
you couldn't be harshening
they couldn't be harshening

Perfect

I couldn't have harshened
you couldn't have harshened
he couldn't have harshened
we couldn't have harshened
you couldn't have harshened
they couldn't have harshened

V-ing perfect

I couldn't have been harshening
you couldn't have been harshening
he couldn't have been harshening
we couldn't have been harshening
you couldn't have been harshening
they couldn't have been harshening

Interrogative form

Simple form

could I harshen?
could you harshen?
could he harshen?
could we harshen?
could you harshen?
could they harshen?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

couldn't I harshen?
couldn't you harshen?
couldn't he harshen?
couldn't we harshen?
couldn't you harshen?
couldn't they harshen?

V-ing form

couldn't I be harshening?
couldn't you be harshening?
couldn't he be harshening?
couldn't we be harshening?
couldn't you be harshening?
couldn't they be harshening?

Perfect

couldn't I have harshened?
couldn't you have harshened?
couldn't he have harshened?
couldn't we have harshened?
couldn't you have harshened?
couldn't they have harshened?

V-ing perfect

couldn't I have been harshening?
couldn't you have been harshening?
couldn't he have been harshening?
couldn't we have been harshening?
couldn't you have been harshening?
couldn't they have been harshening?

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