“我不打算在这呆多久”怎么翻译

I am not to stay here for long.

I am not going to stay here for a long time.

或者

I am not going to stay here so long.

这里可以吧 be going to
intend to
互换
plan to不合适用在这里 plan to通常是说计划做某事

I am not staying for long .
用现在进行时表示将来，或打算。

I don't plan to stay here for long.