I realized that it doesn't matter if I don't know each word.这个句子中为什么doesn't不变过去式

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Irealizedthatitdoesn''tmatterifIdon''tknoweachword.这个句子中为什么doesn''t不变过去式Irealizedthatitdoesn''tmatterifI

I realized that it doesn't matter if I don't know each word.这个句子中为什么doesn't不变过去式
I realized that it doesn't matter if I don't know each word.这个句子中为什么doesn't不变过去式

I realized that it doesn't matter if I don't know each word.这个句子中为什么doesn't不变过去式
这里说的是事实,在宾语从句中如果说的是公理或事实要用一般时.