English verb conjugation COULD WALL

Regular verb: wall - walled - walled

Affirmation

Simple form

I could wall
you could wall
he could wall
we could wall
you could wall
they could wall

V-ing form

I could be walling
you could be walling
he could be walling
we could be walling
you could be walling
they could be walling

Perfect

I could have walled
you could have walled
he could have walled
we could have walled
you could have walled
they could have walled

V-ing perfect

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

Negation

Simple form

I could not wall
you could not wall
he could not wall
we could not wall
you could not wall
they could not wall

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I wall?
could you wall?
could he wall?
could we wall?
could you wall?
could they wall?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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