English verb conjugation COULD PREPLAN

Regular verb: preplan - preplaned - preplaned

Affirmation

Simple form

I could preplan
you could preplan
he could preplan
we could preplan
you could preplan
they could preplan

V-ing form

I could be preplaning
you could be preplaning
he could be preplaning
we could be preplaning
you could be preplaning
they could be preplaning

Perfect

I could have preplaned
you could have preplaned
he 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
he could have been preplaning
we could have been preplaning
you could have been preplaning
they could have been preplaning

Negation

Simple form

I couldn't preplan
you couldn't preplan
he couldn't preplan
we couldn't preplan
you couldn't preplan
they couldn't preplan

V-ing form

I couldn't be preplaning
you couldn't be preplaning
he couldn't be preplaning
we couldn't be preplaning
you couldn't be preplaning
they couldn't be preplaning

Perfect

I couldn't have preplaned
you couldn't have preplaned
he couldn't have preplaned
we couldn't have preplaned
you couldn't have preplaned
they couldn't have preplaned

V-ing perfect

I couldn't have been preplaning
you couldn't have been preplaning
he couldn't have been preplaning
we couldn't have been preplaning
you couldn't have been preplaning
they couldn't have been preplaning

Interrogative form

Simple form

could I preplan?
could you preplan?
could he preplan?
could we preplan?
could you preplan?
could they preplan?

V-ing form

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

Perfect

could I have preplaned?
could you have preplaned?
could he 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 he have been preplaning?
could we have been preplaning?
could you have been preplaning?
could they have been preplaning?

Interro-negative form

Simple form

couldn't I preplan?
couldn't you preplan?
couldn't he preplan?
couldn't we preplan?
couldn't you preplan?
couldn't they preplan?

V-ing form

couldn't I be preplaning?
couldn't you be preplaning?
couldn't he be preplaning?
couldn't we be preplaning?
couldn't you be preplaning?
couldn't they be preplaning?

Perfect

couldn't I have preplaned?
couldn't you have preplaned?
couldn't he have preplaned?
couldn't we have preplaned?
couldn't you have preplaned?
couldn't they have preplaned?

V-ing perfect

couldn't I have been preplaning?
couldn't you have been preplaning?
couldn't he have been preplaning?
couldn't we have been preplaning?
couldn't you have been preplaning?
couldn't they have been preplaning?

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