English verb conjugation COULD DOWN

Regular verb: down - downed - downed

Affirmation

Simple form

I could down
you could down
he could down
we could down
you could down
they could down

V-ing form

I could be downing
you could be downing
he could be downing
we could be downing
you could be downing
they could be downing

Perfect

I could have downed
you could have downed
he could have downed
we could have downed
you could have downed
they could have downed

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I down?
could you down?
could he down?
could we down?
could you down?
could they down?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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