English verb conjugation COULD UPWELL

Regular verb: upwell - upwelled - upwelled

Affirmation

Simple form

I could upwell
you could upwell
she could upwell
we could upwell
you could upwell
they could upwell

V-ing form

I could be upwelling
you could be upwelling
she could be upwelling
we could be upwelling
you could be upwelling
they could be upwelling

Perfect

I could have upwelled
you could have upwelled
she 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
she 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
she 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
she 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
she 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
she 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 she upwell?
could we upwell?
could you upwell?
could they upwell?

V-ing form

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

Perfect

could I have upwelled?
could you have upwelled?
could she 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 she 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 she 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 she 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 she 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 she 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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