<s>Human: 将以下文本中的拼写错误和语法错误全部纠正，并将原文和修正后的文本进行比较。
原文：“I wrot a lettter to received you feedback, but I haven't herd back from you yet.”
</s><s>Assistant: 原文：I wrot a lettter to received you feedback, but I haven't herd back from you yet.
修正后：I wrote a letter to receive your feedback, but I haven't heard back from you yet.

改正的拼写错误有：
- "wrot" → "wrote"
- "lettter" → "letter"
- "received" → "receive"
- "herd" → "heard"

改正的语法错误有：
- "wrote" 作为谓语动词时需要加上主语；
- "to receive" 更符合语境和语法要求；
- "heard" 应该是过去分词形式，而且此处需要用动词的被动语态。
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