The hunt went on for several weeks, but the puma was not caught. but前主句为什么不用完成时态

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The hunt went on for several weeks, but the puma was not caught. but前主句为什么不用完成时态

The hunt went on for several weeks, but the puma was not caught. but前主句为什么不用完成时态
The hunt went on for several weeks, but the puma was not caught. but前主句为什么不用完成时态

The hunt went on for several weeks, but the puma was not caught. but前主句为什么不用完成时态
这个句子是一个并列句,两个分句各自说明一个动作,并没有强调两个动作在时间上的先后关系,所以前面一个分句可以不用完成时态.
注意:
这里是一个并列句,逗号前后的两个部分叫做并列分句
下面这个句子:
I was reading when he came in.
这个句子中的I was reading才叫做主句,而when引导的是从句

go on 有延续状态的意思
不用完成时

按时间的先后顺序发生的两个动词都要用过去时.例如:
I got up late and was late for school.