yama no keshiki wa ii desu.

topic particle

Breakdown of yama no keshiki wa ii desu.

• です: to be
• いい: good
• の: possessive case particle

Questions & Answers about yama no keshiki wa ii desu.

What is the role of the particle の in 山の景色?

の is the genitive (possessive) particle that links two nouns. In 山の景色, it literally means “the scenery of the mountain,” i.e. mountain scenery.

Why is 景色 followed by は instead of a subject marker like が?

は marks the topic of the sentence (“as for …”), so 山の景色は means “as for the mountain scenery.” By contrast, が marks the grammatical subject or highlights new information. Saying 山の景色がいいです would simply present “mountain scenery is nice” as a neutral fact, while …はいいです emphasizes it as the topic you’re talking about.

Why do we use いいです instead of a noun plus です?

いい is an i-adjective meaning “good” or “nice.” In Japanese, i-adjectives act as predicates by themselves, and you add です only for politeness. So 景色はいいです literally means “scenery is good.” There’s no need for an extra noun-plus-です construction.

I thought the dictionary form of “good” was よい, not いい. Why do we say いいです?

Historically, よい is the classical form, but in modern spoken and written Japanese, いい became the standard way to say “good.” Note that when you conjugate , you use the stem (e.g. for “not good,” for “was good”), which reflects its irregular nature.