非延续性动词与延续性动词之间的转换(常用)
(1).转化为相应的延续性动词，用于现在完成时态
eg:
borrow→keep
buy→have
puton→wear
gettoknow→know
gettosleep→sleep
catchacold→haveacold
(2).转化为“be+形容词/副词/介词/名词”
eg:
begin/start→beon
goout→beout
die→bedead
open→beopen
getto/arrivein(at)/reach→bein+地点
leave→beaway(from)
finish→beover
fallill→beill
getup→beup
fallasleep→beasleep
join→bein+活动/组织
gotoschool→beinschool
become→bemake
friends→befriends
close→beclosed
gotobed→beinbed
come/go→be+相应的介词短语