English verb conjugation COULD DOVEN

Regular verb: doven - dovened - dovened

Affirmation

Simple form

I could doven
you could doven
he could doven
we could doven
you could doven
they could doven

V-ing form

I could be dovening
you could be dovening
he could be dovening
we could be dovening
you could be dovening
they could be dovening

Perfect

I could have dovened
you could have dovened
he could have dovened
we could have dovened
you could have dovened
they could have dovened

V-ing perfect

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

Negation

Simple form

I could not doven
you could not doven
he could not doven
we could not doven
you could not doven
they could not doven

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I doven?
could you doven?
could he doven?
could we doven?
could you doven?
could they doven?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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