be动词的一般过去时,第一人称单数和第三人称单数用was,其他人称都用were。
否定句
一般过去时态中,含有be动词的句子变否定句,直接在be动词（was/were）后加not,其中was not可缩写成wasn't , were not可缩写成weren't。结构为“主语+wasn't/weren't+其他”。
肯定句：She was busy last weekend. 她上周末忙。
否定句：She was not busy last weekend. 她上周末不忙。
肯定句：The bees were on the flower just now. 刚刚蜜蜂在花上面。
否定句：The bees weren't on the flower just now. 刚刚蜜蜂不在花上面。
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