English verb conjugation COULD PREPLAN

Regular verb: preplan - preplaned - preplaned

Affirmation

Simple form

I could preplan
you could preplan
she could preplan
we could preplan
you could preplan
they could preplan

V-ing form

I could be preplaning
you could be preplaning
she could be preplaning
we could be preplaning
you could be preplaning
they could be preplaning

Perfect

I could have preplaned
you could have preplaned
she could have preplaned
we could have preplaned
you could have preplaned
they could have preplaned

V-ing perfect

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

Negation

Simple form

I could not preplan
you could not preplan
she could not preplan
we could not preplan
you could not preplan
they could not preplan

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I preplan?
could you preplan?
could she preplan?
could we preplan?
could you preplan?
could they preplan?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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