English verb conjugation COULD BACKCHECK

Regular verb: backcheck - backchecked - backchecked

Affirmation

Simple form

I could backcheck
you could backcheck
she could backcheck
we could backcheck
you could backcheck
they could backcheck

V-ing form

I could be backchecking
you could be backchecking
she could be backchecking
we could be backchecking
you could be backchecking
they could be backchecking

Perfect

I could have backchecked
you could have backchecked
she could have backchecked
we could have backchecked
you could have backchecked
they could have backchecked

V-ing perfect

I could have been backchecking
you could have been backchecking
she could have been backchecking
we could have been backchecking
you could have been backchecking
they could have been backchecking

Negation

Simple form

I could not backcheck
you could not backcheck
she could not backcheck
we could not backcheck
you could not backcheck
they could not backcheck

V-ing form

I could not be backchecking
you could not be backchecking
she could not be backchecking
we could not be backchecking
you could not be backchecking
they could not be backchecking

Perfect

I could not have backchecked
you could not have backchecked
she could not have backchecked
we could not have backchecked
you could not have backchecked
they could not have backchecked

V-ing perfect

I could not have been backchecking
you could not have been backchecking
she could not have been backchecking
we could not have been backchecking
you could not have been backchecking
they could not have been backchecking

Interrogative form

Simple form

could I backcheck?
could you backcheck?
could she backcheck?
could we backcheck?
could you backcheck?
could they backcheck?

V-ing form

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

Perfect

could I have backchecked?
could you have backchecked?
could she have backchecked?
could we have backchecked?
could you have backchecked?
could they have backchecked?

V-ing perfect

could I have been backchecking?
could you have been backchecking?
could she have been backchecking?
could we have been backchecking?
could you have been backchecking?
could they have been backchecking?

Interro-negative form

Simple form

could I not backcheck?
could you not backcheck?
could she not backcheck?
could we not backcheck?
could you not backcheck?
could they not backcheck?

V-ing form

could I not be backchecking?
could you not be backchecking?
could she not be backchecking?
could we not be backchecking?
could you not be backchecking?
could they not be backchecking?

Perfect

could I not have backchecked?
could you not have backchecked?
could she not have backchecked?
could we not have backchecked?
could you not have backchecked?
could they not have backchecked?

V-ing perfect

could I not have been backchecking?
could you not have been backchecking?
could she not have been backchecking?
could we not have been backchecking?
could you not have been backchecking?
could they not have been backchecking?

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