English verb conjugation COULD RIPEN

Regular verb: ripen - ripened - ripened

Affirmation

Simple form

I could ripen
you could ripen
she could ripen
we could ripen
you could ripen
they could ripen

V-ing form

I could be ripening
you could be ripening
she could be ripening
we could be ripening
you could be ripening
they could be ripening

Perfect

I could have ripened
you could have ripened
she 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
she could have been ripening
we could have been ripening
you could have been ripening
they could have been ripening

Negation

Simple form

I couldn't ripen
you couldn't ripen
she couldn't ripen
we couldn't ripen
you couldn't ripen
they couldn't ripen

V-ing form

I couldn't be ripening
you couldn't be ripening
she couldn't be ripening
we couldn't be ripening
you couldn't be ripening
they couldn't be ripening

Perfect

I couldn't have ripened
you couldn't have ripened
she couldn't have ripened
we couldn't have ripened
you couldn't have ripened
they couldn't have ripened

V-ing perfect

I couldn't have been ripening
you couldn't have been ripening
she couldn't have been ripening
we couldn't have been ripening
you couldn't have been ripening
they couldn't have been ripening

Interrogative form

Simple form

could I ripen?
could you ripen?
could she ripen?
could we ripen?
could you ripen?
could they ripen?

V-ing form

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

Perfect

could I have ripened?
could you have ripened?
could she 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 she have been ripening?
could we have been ripening?
could you have been ripening?
could they have been ripening?

Interro-negative form

Simple form

couldn't I ripen?
couldn't you ripen?
couldn't she ripen?
couldn't we ripen?
couldn't you ripen?
couldn't they ripen?

V-ing form

couldn't I be ripening?
couldn't you be ripening?
couldn't she be ripening?
couldn't we be ripening?
couldn't you be ripening?
couldn't they be ripening?

Perfect

couldn't I have ripened?
couldn't you have ripened?
couldn't she have ripened?
couldn't we have ripened?
couldn't you have ripened?
couldn't they have ripened?

V-ing perfect

couldn't I have been ripening?
couldn't you have been ripening?
couldn't she have been ripening?
couldn't we have been ripening?
couldn't you have been ripening?
couldn't they have been ripening?

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