English verb conjugation COULD BUY

Irregular verb: buy - bought - bought

Affirmation

Simple form

I could buy
you could buy
she could buy
we could buy
you could buy
they could buy

V-ing form

I could be buying
you could be buying
she could be buying
we could be buying
you could be buying
they could be buying

Perfect

I could have bought
you could have bought
she could have bought
we could have bought
you could have bought
they could have bought

V-ing perfect

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

Negation

Simple form

I could not buy
you could not buy
she could not buy
we could not buy
you could not buy
they could not buy

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I buy?
could you buy?
could she buy?
could we buy?
could you buy?
could they buy?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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