Abstract: S＋S＋V sentence is a special sentence type in Chinese. The sentence type of predicates composed by SV structure is also the most common, most important sentence type of Chinese, and it is one of the important different sentence types hetween Chinese with I

Key words: S＋S＋V Sentence, HNC theory, Semantic chunk, Sentence category （SC）expressions, Action and effect chain, Sentence Format （SF）