English verb conjugation COULD FELL

Regular verb: fell - felled - felled

Affirmation

Simple form

I could fell
you could fell
he could fell
we could fell
you could fell
they could fell

V-ing form

I could be felling
you could be felling
he could be felling
we could be felling
you could be felling
they could be felling

Perfect

I could have felled
you could have felled
he could have felled
we could have felled
you could have felled
they could have felled

V-ing perfect

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

Negation

Simple form

I couldn't fell
you couldn't fell
he couldn't fell
we couldn't fell
you couldn't fell
they couldn't fell

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I fell?
could you fell?
could he fell?
could we fell?
could you fell?
could they fell?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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