Simple sentence 简单句
主谓（宾）
I study. I study Chinese.
Compound sentence 并列句
用and, but这样的连词, 连接的两个或两个以上的句子。分句没有主从关系。
I study Chinese but he studies French.
Complex sentences 复合句
用because, since 等连词，连接的两个或两个以上的句子，分主句和从句。
I study Chinese because I like the language.
Compound Complex 并列复合句
用because, since 等连词，连接的两个或两个以上的复合句。
I study Chinese because I like the language and he studies French because he likes that country.
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