ninki no resutoran wa yoyaku ga hitsuyou desu.

topic particle

Breakdown of ninki no resutoran wa yoyaku ga hitsuyou desu.

• です: to be
• が: subject particle
• の: possessive case particle

Questions & Answers about ninki no resutoran wa yoyaku ga hitsuyou desu.

What does の do in 人気のレストラン?

It links one noun to another, making an attributive phrase. Here 人気 (popularity) + の modifies レストラン (restaurant), giving “restaurant(s) with popularity,” i.e., “popular restaurant(s).” の often works like “of” or turns a noun into a descriptor: 日本の映画 (Japanese film), 子どもの本 (children’s book).

Can I say 人気なレストラン instead of 人気のレストラン?

You may hear 人気な in the wild, but the most standard and safe choice is 人気のレストラン. Another very natural option is 人気のあるレストラン (“a restaurant that has popularity”). If you’re not sure, stick with 人気の or 人気のある.

What does は after レストラン mean here?

は marks the topic: “As for popular restaurants, ….” It sets the scene and often implies a general statement. If you want to emphasize “at popular restaurants (as a location),” use では: 人気のレストランでは予約が必要です.

Why is 予約 marked with が and not を?

Because this uses the pattern Nが必要です (“N is necessary”). 予約 is the thing that is necessary, so it takes が. You’d use を when 予約 is the direct object of a verb like する: 予約をする (“to make a reservation”).

Can I say 予約は必要です instead of 予約が必要です?