English verb conjugation COULD UPWELL

Regular verb: upwell - upwelled - upwelled

Affirmation

Simple form

I could upwell
you could upwell
he could upwell
we could upwell
you could upwell
they could upwell

V-ing form

I could be upwelling
you could be upwelling
he could be upwelling
we could be upwelling
you could be upwelling
they could be upwelling

Perfect

I could have upwelled
you could have upwelled
he could have upwelled
we could have upwelled
you could have upwelled
they could have upwelled

V-ing perfect

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

Negation

Simple form

I could not upwell
you could not upwell
he could not upwell
we could not upwell
you could not upwell
they could not upwell

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I upwell?
could you upwell?
could he upwell?
could we upwell?
could you upwell?
could they upwell?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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