＂Ruguoshuo （如果说）p dehua（的话）,q＂ is a particular type of sentences in modern Chinese hypothesis compound clause. The paper examines the sentence pattern from three aspects. Firstly, the sentences＇ construction is examined from the former-echo clauses and back-response clauses. Secondly, it discusses the double-correspondence and triple-correspondence meaning relationships of them. Thirdly, the using value of them is examined from the angle of language strategy.