What Does This Japanese Sentence Mean In English?

Question:

ありがとうございます
Its starting...の部分は現在分詞(Present participle)を使ったつもりだったんですけど、あまり慣れない表現は使わな…
不自然な表現で、かえってネイティブの人には通じないんだろうなぁ。

I'll vote best answer

Answer:

OK:

Thank you.

The part "It's starting" is where I tried to use the present participle [-ing form of a verb], but it's not something I'm used to using.....[sentence cuts off]

I wonder if this is unnatural, and a native speaker would not understand.....