將來(lái)完成進(jìn)行時(shí)結(jié)構(gòu):shall have been doing ,will have been doing
例:By the end of next month, the project will have been being worked for 3 years. (到下個(gè)月底為止,這項(xiàng)工程就已經(jīng)不停地進(jìn)行了3年了。)(被動(dòng)語(yǔ)態(tài))
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