English verb conjugation CAN BUY

Irregular verb: buy - bought - bought

Affirmation

Simple form

I can buy
you can buy
he can buy
we can buy
you can buy
they can buy

V-ing form

I can be buying
you can be buying
he can be buying
we can be buying
you can be buying
they can be buying

Perfect

I can have bought
you can have bought
he can have bought
we can have bought
you can have bought
they can have bought

V-ing perfect

I can have been buying
you can have been buying
he can have been buying
we can have been buying
you can have been buying
they can have been buying

Negation

Simple form

I cannot buy
you cannot buy
he cannot buy
we cannot buy
you cannot buy
they cannot buy

V-ing form

I cannot be buying
you cannot be buying
he cannot be buying
we cannot be buying
you cannot be buying
they cannot be buying

Perfect

I cannot have bought
you cannot have bought
he cannot have bought
we cannot have bought
you cannot have bought
they cannot have bought

V-ing perfect

I cannot have been buying
you cannot have been buying
he cannot have been buying
we cannot have been buying
you cannot have been buying
they cannot have been buying

Interrogative form

Simple form

can I buy?
can you buy?
can he buy?
can we buy?
can you buy?
can they buy?

V-ing form

can I be buying?
can you be buying?
can he be buying?
can we be buying?
can you be buying?
can they be buying?

Perfect

can I have bought?
can you have bought?
can he have bought?
can we have bought?
can you have bought?
can they have bought?

V-ing perfect

can I have been buying?
can you have been buying?
can he have been buying?
can we have been buying?
can you have been buying?
can they have been buying?

Interro-negative form

Simple form

can I not buy?
can you not buy?
can he not buy?
can we not buy?
can you not buy?
can they not buy?

V-ing form

can I not be buying?
can you not be buying?
can he not be buying?
can we not be buying?
can you not be buying?
can they not be buying?

Perfect

can I not have bought?
can you not have bought?
can he not have bought?
can we not have bought?
can you not have bought?
can they not have bought?

V-ing perfect

can I not have been buying?
can you not have been buying?
can he not have been buying?
can we not have been buying?
can you not have been buying?
can they not have been buying?

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