English verb conjugation COULD COSTUME

Regular verb: costume - costumed - costumed

Affirmation

Simple form

I could costume
you could costume
he could costume
we could costume
you could costume
they could costume

V-ing form

I could be costuming
you could be costuming
he could be costuming
we could be costuming
you could be costuming
they could be costuming

Perfect

I could have costumed
you could have costumed
he could have costumed
we could have costumed
you could have costumed
they could have costumed

V-ing perfect

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

Negation

Simple form

I could not costume
you could not costume
he could not costume
we could not costume
you could not costume
they could not costume

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I costume?
could you costume?
could he costume?
could we costume?
could you costume?
could they costume?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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