English verb conjugation COULD RIPEN

Regular verb: ripen - ripened - ripened

Affirmation

Simple form

I could ripen
you could ripen
he could ripen
we could ripen
you could ripen
they could ripen

V-ing form

I could be ripening
you could be ripening
he could be ripening
we could be ripening
you could be ripening
they could be ripening

Perfect

I could have ripened
you could have ripened
he could have ripened
we could have ripened
you could have ripened
they could have ripened

V-ing perfect

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

Negation

Simple form

I could not ripen
you could not ripen
he could not ripen
we could not ripen
you could not ripen
they could not ripen

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I ripen?
could you ripen?
could he ripen?
could we ripen?
could you ripen?
could they ripen?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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