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it is raining now 怎么变过去时

来源：学生作业帮 编辑：作业帮 分类：英语作业 时间：2024/05/22 13:40:56
it is raining now 怎么变过去时
it is raining now 这句变过去式 变成了：it rained yesterday.
请问 为什么后面那句不加BE动词的过去式形态 were/was?
不甚感激!
i am back 的过去式是什么？
am back 不都是动词吗？
it is raining now 是现在进行时,基本形式是：be+动词的ing
而it rained yesterday.是一般过去时,基本形式是用动词过去式
并且后面那句rain本身已经是动词,是不可能在加一个系动词Be的,在英语简单句中只能有一个谓语动词.
it is raining now 怎么变过去时 It is raining now.raining 词性是什么 It is raining now.It_____yesterday. It is raining very hard.怎么变一般疑问句 There is ( ) rain.It is raining ( ) now. it is on the bed 变成过去时 怎么变? It is raining unusually hard right now it is raining now.变为一般疑问句 It's raining now.Today is（） It is raining hard now.改错 It is raining now 同义句 It is raining now同义句 It′s--- --- now.