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 couldn't doven
you couldn't doven
he couldn't doven
we couldn't doven
you couldn't doven
they couldn't doven

V-ing form

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

Perfect

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

V-ing perfect

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

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

V-ing form

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

Perfect

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

V-ing perfect

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

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