English verb conjugation COULD POLYGRAPH

Regular verb: polygraph - polygraphed - polygraphed

Affirmation

Simple form

I could polygraph
you could polygraph
she could polygraph
we could polygraph
you could polygraph
they could polygraph

V-ing form

I could be polygraphing
you could be polygraphing
she could be polygraphing
we could be polygraphing
you could be polygraphing
they could be polygraphing

Perfect

I could have polygraphed
you could have polygraphed
she could have polygraphed
we could have polygraphed
you could have polygraphed
they could have polygraphed

V-ing perfect

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

Negation

Simple form

I could not polygraph
you could not polygraph
she could not polygraph
we could not polygraph
you could not polygraph
they could not polygraph

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I polygraph?
could you polygraph?
could she polygraph?
could we polygraph?
could you polygraph?
could they polygraph?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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