英文好既請進

1. i did it before .

因為其他戈2個,,文法吾岩,,錯晒,,

1. 比較直接明白
如果用 2. , 應寫作: I had it done before.
多數人寫錯次序.

hi, both answers are correct too. if u are using in the conversation, the 1st one is the best, it is more simple and clear.

我會建議你用2, 或者用 I have done it before 都得
I did it before. 比較簡單過咗件事發生既時間,
I have done it before (so I knew it) 就講出咗你識得答既原因

比個例子你
人地問你點解會知迪士尼唔好玩
你會答: I have been there before (原因)
唔會答: I went there before (時間)

1. is correct.
you should use simple past tense in this case.