kyou wa ie ni iru.

topic particle

Breakdown of kyou wa ie ni iru.

• 今きょ日う: today
• 家いえ: home
• に: location particle

Questions & Answers about kyou wa ie ni iru.

Why is は used after 今日?

は marks 今日 as the topic: as for today or today, ...

So 今日は家にいる。 is structured like:

• 今日は = today / as for today
• 家にいる = be at home

This does not mean today is the grammatical subject. It sets the time frame or topic for the rest of the sentence.

Why isn’t there a subject like I in the sentence?

Japanese often leaves out subjects when they are clear from context.

So 今日は家にいる。 can mean:

• I’m staying home today.
• We’re staying home today.
• He/She is at home today.

In many situations, the listener can tell who is being talked about, so Japanese does not need to say it explicitly.

If you want to make it explicit, you could say:

• 私は今日は家にいる。 = I’m at home today.

But very often that would be unnecessary.

Why is に used with 家?