1. If I had chocolate now, I would've eaten it.
如果我現在有巧克力，我將會吃掉。
2. If I knew that you needed my help, I would have helped you.
如果我知道你需要幫助，我將會幫你
3. If you haven't eaten this food before, how would you know if you
like it or not?
如果你沒有吃過這個食物，你如何知道你喜不喜歡呢?
最近再複習if相關的用法，發現些困惑的句子。
自己認為應改為
1. If I had had chocolate now, ...
2. If I had known that you needed my help, ...
而第三句整個困惑，不知道為何使用 haven't eaten
麻煩各位指導，謝謝！