English verb conjugation COULD DECUPLE

Regular verb: decuple - decupled - decupled

Affirmation

Simple form

I could decuple
you could decuple
he could decuple
we could decuple
you could decuple
they could decuple

V-ing form

I could be decupling
you could be decupling
he could be decupling
we could be decupling
you could be decupling
they could be decupling

Perfect

I could have decupled
you could have decupled
he could have decupled
we could have decupled
you could have decupled
they could have decupled

V-ing perfect

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

Negation

Simple form

I could not decuple
you could not decuple
he could not decuple
we could not decuple
you could not decuple
they could not decuple

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I decuple?
could you decuple?
could he decuple?
could we decuple?
could you decuple?
could they decuple?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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