since .... ago; since .... lived/have lived ... (in a city)

"(現在完成式) ..... since ..(一段時間).. ago"這寫法倒底可不可以？其實一個需要思考的地方是「你為什麼要用這寫法來表達？」

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https://www.usingenglish.com/forum/forums/ask-a-teacher.8/

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(a mixed bag)

https://www.usingenglish.com/forum/threads/he-has-been-ill-since-last-week-and-still-doesn%E2%80%99t-feel-well.286833/

 
https://www.usingenglish.com/forum/threads/278112-For-or-since

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http://www.learnersdictionary.com/qa/always-and-since

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She hasn't done it since a week ago. (?)
http://groups.google.com/group/alt.usage.english/browse_thread/thread/388843e552ac3567
(Another note to self: Finish reading it tomorrow)

https://groups.google.com/forum/#!topic/alt.usage.english/OIhD5VKsNWc

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"A Comprehensive Grammar of the English Language"
 By Quirk et al
(8.61 page 538, 539)
(pdf p274)

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https://groups.google.com/d/topic/alt.usage.english/U4jQI9GhjJc/discussion
... since they lived/have lived in London ...?
(問的人的母語不是英文。回答的人裡頭至少有一人母語不是英文(jinhy...)

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http://tinyurl.com/h7yy5qc 特別是#6(Iv...) 以及最後一篇

http://www.usingenglish.com/forum/threads/205039-Present-perfect-question-which-one-is-correct-what-is-the-difference-in-meaning
5jj

http://www.usingenglish.com/forum/threads/96132-During-v-Since

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