我一直在思考您说的话，恕我直言，我认为您错了。

I’ve been thinking about what you said and, ___with ___all ___due ___respect, I think you’re mistaken.

我们感谢您的努力，但恕我直言，结果并不令人满意，需要进一步改进。

We appreciate your efforts, but ___with ___all ___due ___respect, the results are not satisfactory and need further improvement.

恕我直言，您的提议似乎忽略了一些可能影响项目成功的关键细节。

___With ___all ___due ___respect, your proposal seems to overlook some critical details that could affect the project's success.