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 couldn't upwell
you couldn't upwell
he couldn't upwell
we couldn't upwell
you couldn't upwell
they couldn't upwell

V-ing form

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

Perfect

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

V-ing perfect

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

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

V-ing form

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

Perfect

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

V-ing perfect

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

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