English verb conjugation COULD UNSHELL

Regular verb: unshell - unshelled - unshelled

Affirmation

Simple form

I could unshell
you could unshell
he could unshell
we could unshell
you could unshell
they could unshell

V-ing form

I could be unshelling
you could be unshelling
he could be unshelling
we could be unshelling
you could be unshelling
they could be unshelling

Perfect

I could have unshelled
you could have unshelled
he could have unshelled
we could have unshelled
you could have unshelled
they could have unshelled

V-ing perfect

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

Negation

Simple form

I could not unshell
you could not unshell
he could not unshell
we could not unshell
you could not unshell
they could not unshell

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I unshell?
could you unshell?
could he unshell?
could we unshell?
could you unshell?
could they unshell?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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