Is Helen washing clothes?和You aren't thinking about the future now.句中都有实义动词为什么不用助动词do呢?是现在进行时的关系吗?

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IsHelenwashingclothes?和Youaren''tthinkingaboutthefuturenow.句中都有实义动词为什么不用助动词do呢?是现在进行时的关系吗?IsHelenwash

Is Helen washing clothes?和You aren't thinking about the future now.句中都有实义动词为什么不用助动词do呢?是现在进行时的关系吗?
Is Helen washing clothes?和You aren't thinking about the future now.句中都有实义动词为什么不用
助动词do呢?是现在进行时的关系吗?

Is Helen washing clothes?和You aren't thinking about the future now.句中都有实义动词为什么不用助动词do呢?是现在进行时的关系吗?
现在进行时的格式就是要用Be+V-ing