元気
げんき
health(y), energetic
na-adjective
Conjugation Table
Present
元気だ
Negative
元気じゃない
Past
元気だった
Past Negative
元気じゃなかった
Te Form
元気で
Adverbial
元気に
Conditional
元気なら
Presumptive
元気でしょう
Example Sentences
昨日、友達は元気でした。
My friend was energetic yesterday.
Kinō, tomodachi wa genki deshita.
今日は元気じゃないです。
I am not feeling well today.
Kyō wa genki janai desu.
子供たちは公園で元気に遊んでいます。
The children are playing energetically in the park.
Kodomotachi wa kōen de genki ni asondeimasu.
Grammar Notes & Usage Tips
•Na-Adjective Basics**: Remember, 元気 (げんき) is a na-adjective, so when you use it before a noun, you need to add "な" in between; for example, 元気な人 (げんきなひと) means "a healthy person."
•Using with です**: When 元気 is used at the end of a sentence, pair it with です to make it polite: 彼は元気です (かれはげんきです) means "He is energetic."
•Casual Speech**: In casual conversations, you can drop the です at the end, simply saying 彼は元気 (かれはげんき) if you're speaking informally with friends.
•Negative Form**: To say someone is not energetic, conjugate it to the negative form by adding じゃない: 彼は元気じゃない (かれはげんきじゃない) means "He is not healthy."
•な-adjective: Uses な before nouns, conjugates like a noun