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How long has she lived in Xianxian County?
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Winter has come , can spring be far
behind ?
-Shelley
Present Perfect Tense 现在完成时
02 主要用法
03 关键词Key words
05 瞬间动词与延续性动词
04 have/has been
与 have/has gone
不规则动词的过去式以及过去分词（PP）巧记规律
AAA: put– put –put
let—let –let
ABA: become-became-become
ABB: stand—stood—stood
ABC : eat— ate—eaten
AAA
cost-cost-cost read-read-read
put-put-put cut-cut-cut
et-let-let set-set-set
hit-hit-hit hurt-hurt-hurt spit-spit-spit rid-rid-rid