Say you can do something (ができる)

Ability as an Emergent State: The Mental Model

In English, “can do” is treated as an active verb performed on a direct object: “I can speak Japanese.” In Japanese, capability is viewed through an entirely different lens: an ability that materializes or is possible.

The intransitive verb できる literally means “to emerge,” “to materialize,” or “to come into being.” Because you are not performing an action on the noun, the noun is the grammatical subject of possibility and takes が, never を:

• 日本語ができます: “I can speak Japanese” (Literally: “Japanese is possible for me”).
• スキーができます: “I can ski.”
• 料理ができます: “I can cook.”

Saying *日本語をできます is one of the most common grammatical errors made by beginners! Always pair できる with が.

Noun + ができる: What Nouns Can Connect?

できる connects cleanly to nouns that represent:

1. Languages: 英語ができます (can speak English), 韓国語ができます (can speak Korean). 2. Sports & Activities: テニスができます (can play tennis), ピアノができます (can play piano). 3. Tasks & Skills: 運転ができます (can drive), 手品ができます (can do magic tricks).

If you want to say you can perform a specific verb (like “I can eat spicy food” or “I can read kanji”), you wrap the verb in こと to create 〜ことができる: 漢字を読むことができます.

The Second Meaning: “To Be Finished / Created”

Because できる at its core means “to come into existence,” it is also universally used for things that have finished being made or completed:

• ご飯ができましたよ！: “Dinner is ready!”
• 新しい友達ができました: “I made new friends” (Literally: “New friends came into being”).
• 駅の前に新しいビルができた: “A new building went up in front of the station.”

できる vs 分かる (Wakarimasu): Skill vs Comprehension

Learners often wonder when to use 日本語ができます versus 日本語が分かります:

• 日本語が分かります — Comprehension / Understanding: “I understand Japanese when I hear or read it.”
• 日本語ができます — Active capability / Production: “I can speak, write, and communicate in Japanese.”