already,ever.等既PRESENT PERFECT TENSE 點用?

以下有一d example:

already:用係已經發生咗的事情上,通常在have and past participle 中間,係已經咁解
e.g. I have already finished my homework.
Have you already bought the tickets for me?

ever: 有曾經的意思,通常問人地你有冇曾經做過一d野or去過一個地方
e.g. Have you ever been to Japan?
I have ever been to Japan.

for:在present prefect來說,for即係代表你做咗一件事做咗幾耐,去咗一個地方去咗幾耐, 通常　係answer how long，所以ｆｏｒ後面係一段時間-period.
e.g. I have lived in Hong Kong for twelve years.
　　Have you practised this song for two months?-不常用　　　


just:剛剛，方才的意思，同already一樣，用係have and past participle中間，只係佢地２　　個意思唔同,already係件事已經做咗唔知幾耐，但just就一定係剛剛做完
e.g. I have just written this letter to my mum. 　　
Have you just finished your work?

never:從未，未曾的意思，指你從未做過一ｄ野ｏｒ去過一個地方，用在have and past participle 中間
e.g. I have never been to New York.
I have never ridden bicycle.
很少用在問題上
since:從那時起，即是你從一個時候開始做一件事，係持續性的，跟在後面的是一個日期or時間.
e.g. I have learnt how to swim since last year.
　 Have you seen Ailson since 1996?

yet:在present prefect 中，通常在negative句子中表示否定的意思or用在問題上,用的時候會放在句子or問題末
e.g. I haven't finished the project yet.
Have you watched this film yet?


以上全部都係我所學過的東西綜合出來的，如果你有咩問題可以問我.

例子
already:I have already eaten lunch.(剛剛食完午餐)
ever:Have you ecer eaten your lunch?(你食左午餐未?)
for:I have eaten lunch for 2 o'clock.(我在2點食完午餐)
just:I have just eaten my breakfast.(剛剛食完午餐)
never:I have never eat my lunch.(我從不食午餐)
yet;I haven't eaten my lunch yet.(我未食完午餐)

應該差唔多~~