was and were

If it is past tense(過去式), then
it funtions as 'be',
am/is-> was
are->were

if you want to say 'if ... ,....'
e.g.
如果我是你,我會放棄!
If I were you, I will be give up.
係呢個情況,無論你係用is/am/are 都係用were,因為你講緊d冇可能發生的事

大概係咁,以我現有知識係得咁多,希望幫到你^^

2006-10-18 21:08:45 補充：
咁樣應該好睇d,我將開引號轉左括號..If it is past tense(過去式), thenit funtions as (be),am/is - wasare - wereif you want to say (if ... ,....)e.g.如果我是你,我會放棄!If I were you, I will be give up.係呢個情況,無論你係用is/am/are 都係用were,因為你講緊d冇可能發生的事

I, He, She, It : Use was

We, They, You: Use were

i, he, she, it : use was

We, They, You: use were