幫我批改English sentences，請認真批改.

認真批改
錯處(修改)/解釋

(一)
本意：不是英文需要我，而是我需要英文。
句子：It's not English to need me that is exchange.
批改：It's not English to need(that needs)/ need is the main verb
me that is exchange(but the opposite)/but-conjunction, exchange is the wrong word to use.
正確：It's not English that needs me but the opposite.(不是英文需要我，而是相反。)
完善的句子: It's not English that needs me but the other way round.

(二)
本意：你之前不是見過她了嗎
句子：Do you have seen her already?
批改：Do you have(Have you)/present perfect tense (not)不seen her already?
正確：Have you not seen her already?
完善的句子: Did you not see her earlier?

(三)
本意：過了18嵗的香港人需要去申請成人身份證.
句子：After 18 years old of Hong Kong people need apply for the Hong Kong
Identity card of adult.
批改：After 18 years old of (turning 18) Hong Kong people need (to)/infinitive apply for the Hong Kong
Identity card of adult(Hong Kongadult identity card)/adult as an adjective.
正確：After turning 18, Hong Kong people need to apply for the Hong Kong adult identity card.
完善的句子: Hong Kong residents over 18 need to apply for their adult identity card.

2014-06-28 18:01:28 補充：
Did you not see her earlier?
From Chapter 28 of Grades & Pompoms by Dream Of Rose Petals
https://www.fanfiction.net/s/6259197/28/Grades-Pompoms

2014-06-28 18:05:05 補充：
Have you seen her already?
From Page 159 in "Learner English: A Teacher's Guide to Interference and Other Problems, Volume 1 by Michael Swan"
books.google.co.nz/books?isbn=0521779391

eicachan = Chinglish expert

eicachan = good at voting for her answers with her secret IDs as well

2014-06-27 16:40:58 補充：
LMFAO@Did you not see her earlier?

I have re-wriiten the sentences for you. Please pay attention to the sentence structure and learn to write them.

1. It is I who need English and not English that needs me.
2. Haven't you met/ seen her before? or

For the same question, you can use a question tag which is common in
Enlgish speaking countries:
You have met/ seen her before, haven't you?
3. Hong Kong residents of age 18 or above are required to register for a
permanent Hong Kong ID card.

上面已經指出你的問題和提供幾好的答案。

第一句我會以「我需要英語為主要信息」，而建議寫成
It is I who need English, not the opposite.
這是按你的中文意思寫，但坦白講，這樣把英文擬人法並不太好。

第一句已改得很好，而且有兩個可能答案，原因是我們其實無法得知你所謂的「你之前不是見過她了嗎？」中的「之前」這「完成式」是甚麼用意，英語有些句法是要很細緻的，再加上這是反問句，另一種寫法是：
You have seen her already, haven't you?

第三句亦正確地依你中文意思寫成正確的英文，不過由於你中文的原用詞有問題，所以看上去仍不像英語人會講會寫的東西。

Hong Kong residents upon the age of 18 need to apply for an Adult Identity Card.

很對不起，你的句子改無可改，只可重寫：

1. It is not English that needs me but the opposite.

2. Haven't you seen her before? 或 Haven't you already seen her?

3. Hong Kong people of 18 years or older need to apply for the adult ID card.