buy的過去分詞就是bought，它的意思就是買、購買、夠支付、買通、 收買、賄賂。當使用這個單詞的時候，往往已經購買，而不是尚未購買。如果需要用這個詞表示自己準備購買某種東西是錯誤的，只需要使用bug就可以了。

buy的用法

作為動詞：

1.obtain in exchange for payment

買,購

we had to find some money to buy a house.

我們得籌錢買房子.

2.often with negative]be a means of obtaining (something) through exchange or payment.

換得;買到;獲得

money can't buy happiness.

金錢不能買到幸福.

3.procure the loyalty and support of (someone) by bribery.

向…行賄,收買

here was a man who could not be bought.

這里有個不能被收買的人.

I'll buy off the investigators.

我將收買調查者.

或者名詞n.

交易,買賣

He made a buy of wheat last week.

上星期他做了一筆小麥的買賣.