English verb conjugation COULD RACK

Regular verb: rack - racked - racked

Affirmation

Simple form

I could rack
you could rack
he could rack
we could rack
you could rack
they could rack

V-ing form

I could be racking
you could be racking
he could be racking
we could be racking
you could be racking
they could be racking

Perfect

I could have racked
you could have racked
he could have racked
we could have racked
you could have racked
they could have racked

V-ing perfect

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

Negation

Simple form

I could not rack
you could not rack
he could not rack
we could not rack
you could not rack
they could not rack

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I rack?
could you rack?
could he rack?
could we rack?
could you rack?
could they rack?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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