BBC英国广播电台广播英语课程(根据广播节目整理)shall,will,should,would的用法与用法区别will,构成将来时,不管什么场合,都用will。例句:Iwillgohometomorrow.I’llgohometomorrow.Hewillbeheresoon.Theywillnotarrivebeforenextweek.(Theywon’tarrivebeforenextweek.)Hewon’tcometoday.shall,一种用法是在主语是第一人称的句子里代will.例句:Ishallgohometomorrow.第二种用法,用在第二人称与第三人称的句子中,加重语气,有“非这样做不可”的意思。例句:Heshallcomeatonce.shall是一定,非得的意思。但现在,特别是年轻人,一般不用shall,而用makesure.Makesureshecomesatonce.should,would,用来表达条件的助动词。IshouldgoatonceifIwereyou.I’dgoatonceifIwereyou.Iknewyou’dunderstand.should,应该,用于各种人称,而且只能用should。Weshouldkeepupourpromises.Youshouldseeadoctoratonce.Would,行动,做法(过去的习惯)。Inthosedayshewouldstayinbedtillnoon.Would,提要求。Wouldyoudrivemehometonight?