便利
べんり
convenient, handy
na-adjective
Conjugation Table
Present
便利だ
Negative
便利じゃない
Past
便利だった
Past Negative
便利じゃなかった
Te Form
便利で
Adverbial
便利に
Conditional
便利なら
Presumptive
便利でしょう
Example Sentences
このアプリは便利です。
This app is convenient.
Kono apuri wa benri desu.
昨日の天気は便利じゃなかった。
Yesterday's weather was not convenient.
Kinou no tenki wa benri ja nakatta.
電車が便利で、毎日使います。
Trains are convenient, so I use them every day.
Densha ga benri de, mainichi tsukaimasu.
Grammar Notes & Usage Tips
•Na-Adjective Basics**: "便利" (べんり) is a na-adjective, which means when you want to use it before a noun, you need to add "な" after it, like in "便利な場所" (べんりなばしょ - convenient place).
•Conjugation for Politeness**: To say something is convenient politely, use "便利です" (べんりです). If you're talking about something that isn't convenient, you can say "便利じゃない" (べんりじゃない) for informal or "便利ではありません" (べんりではありません) for formal situations.
•Expressing Past Convenience**: To express that something was convenient, use "便利だった" (べんりだった) informally or "便利でした" (べんりでした) in formal contexts.
•Watch the Particle**: When describing a noun with "便利," remember to use the particle "が" after the subject, as in "このアプリが便利です" (このアプリがべんりです - This app is convenient). This emphasizes the convenience of the app specifically.
•な-adjective: Uses な before nouns, conjugates like a noun