konshuu wa mainichi toshokan de nihongo no kaiwa o renshuusurukoto ni shimasu.

topic particle

Breakdown of konshuu wa mainichi toshokan de nihongo no kaiwa o renshuusurukoto ni shimasu.

• を: direct object particle
• 日に本ほん語ご: Japanese (language)

Questions & Answers about konshuu wa mainichi toshokan de nihongo no kaiwa o renshuusurukoto ni shimasu.

Why does 今週 use は instead of something like に or no particle?

は is marking 今週 as the topic of the sentence: “As for this week…”

So the structure is:

• 今週は = As for this week, speaking about this week…
• Then the comment: 毎日図書館で日本語の会話を練習することにします。

If you said 今週に, it would sound like you’re marking a specific time point (“at/in this week”), which is not natural here. You’re not pinpointing a time; you’re framing what you’re going to do during this week in general, so Japanese prefers a topic with は.

In short:

• 今週は… = “This week, (I will) …” (topic)
• Not 今週に…, because that would treat it like a precise time adverb, which doesn’t fit the broad “this week as a whole” nuance here.

Why does 毎日 have no particle? Can I say 毎日に or 毎日を?

Time expressions like 毎日 (every day), 明日 (tomorrow), 昨日 (yesterday), 来週 (next week) often appear without a particle when they simply tell you when something happens.

So:

• 毎日図書館で… = “(do something) at the library every day”

Saying 毎日に or 毎日を here would be unnatural.
You can add particles to time words in special situations (e.g. 毎日が忙しい “every day is busy”), but for “do X every day”, 毎日 + verb without a particle is the normal pattern.

So 今週は毎日図書館で… = “This week, (I will) do it at the library every day.”