Translation of "Unmarried" in Chinese

They are both unmarried.

他们两个都是单身。

Why are you still unmarried?

你為甚麼還不結婚？

- I'm single.
- I'm unmarried.
- I am not married.

- 我单身。
- 我單身。

- I am a bachelor.
- I am single.
- I'm not married.
- I'm single.
- I'm unmarried.

我單身。