since/for的分別?

since 2000=自從2000
e.g. I have been in HK since 2000(我自從2000年就係香港)

for 2000 ....好似冇呢個grammar
since用係數字(2000)..for係英文字(e.g three years)
e.g. I have been in HK for 3 year(我係香港已經有3年)

in 2000= 係2000(during2000)
e.g. I got married in 2000 (我係2000年結左婚)


我已經講左...
Since 用来说明动作起始时间(e.g 3 o'clock, 2008, 25th Feb......etc.)
e.g I have been waiting for you SINCE 3 O'CLOCK!

for用来说明动作延续时间长度( 2 hours, 10 days, 8 years...etc)
e.g I have been waiting you FOR 2 HOURS.
明唔明?唔明再問...HOPE CAN HELP U

簡單講:
since由幾時開始
for係玩左幾耐

e.g:
i have been to this island for 20years.
我黎左呢個島20年.

i have been to this island since i was 12 years old.
我黎左呢個島當我仲係12歲個陣

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