How do you say someone is here in Japanese?

Here are two ways to say "someone is here" in Japanese:

1. Hito ga iru.

This is the most common way to say "someone is here." It can be used in both formal and informal settings.

2. Dareka iru.

This is a less formal way to say "someone is here." It is often used in informal conversations or when you are speaking to someone you are close to.