JLPT N4 - Grammar ๐ ใใจใใงใใ koto ga dekiru
Have you ever been in a situation where you needed to ask,
“Can I pay by card?”
“Can I take a photo here?”
or “Can you speak English?”
In Japanese, when you want to ask or say what someone can or is able to do, we use ใใจใใงใใ (koto ga dekiru).
It’s an N4 grammar point that means “can do” or “be able to.”
You’ll hear it often when making polite requests or checking what’s possible, for example, in shops, stations, or hotels.
It’s slightly more formal and softer than just saying ใงใใ, which makes it perfect for everyday polite Japanese.
Let’s learn how to use it naturally, so you can express what you can (or can’t) do in Japanese, politely and confidently!
Shall we start?



ใงใใ vs ใใจใใงใใ
Both ใงใใ and ใใจใใงใใ mean “can” or “be able to,” but there’s a small difference in tone and formality.
ใงใใ focuses on ability, “someone is capable of doing something.”
It’s more natural in daily conversation.
ๅฝผใฏใใขใใใงใใใ
ใใ ใฏ ใดใใฎ ใ ใงใใใ
kare ha piano ga dekiru.
He can play the piano.
ใใจใใงใใ focuses on the action, “the act of doing something is possible.”
It sounds more polite or formal, and you’ll often hear it in announcements or written explanations.
ใใฎๅณๆธ้คจใงใฏๆฌใๅใใใใจใใงใใพใใ
ใใฎ ใจใใใใ ใงใฏ ใปใ ใ ใใใ ใใจ ใ ใงใใพใใ
kono toshokan de wa hon wo kariru koto ga dekimasu.
You can borrow books at this library.
๐ก Tip:
ใงใใ for casual, spoken Japanese,
ใใจใใงใใ for polite or formal contexts.
ๅฝผๅฅณใฏๆฅๆฌ่ชใ่ฉฑใใใจใใงใใใ
ใใฎใใ ใฏ ใซใปใใ ใ ใฏใชใ ใใจ ใ ใงใใใ
kanojo ha nihongo wo hanasu koto ga dekiru.
She can speak Japanese.
็งใฏๆฅฝๅจใๆผๅฅใใใใจใใงใใชใใ
ใใใ ใฏ ใใฃใ ใ ใใใใ ใใ ใใจ ใ ใงใใชใใ
watashi ha gakki wo ensou suru koto ga dekinai.
I can’t play any musical instruments.
่ฌ็พฉใฎใใจใ็ดๆฅ่ณชๅใใใใจใใงใใพใใ
ใใใ ใฎ ใใจใใกใใใใค ใใคใใ ใใ ใใจ ใ ใงใใพใใ
kougi no ato, chokusetsu shitsumon suru koto ga dekimasu.
You can ask questions directly after the lecture.
ใใฎ็พ่ก้คจใงใฏใๅ็ใๆฎใใใจใใงใใพใใใ
ใใฎ ใณใใ
ใคใใ ใงใฏใใใใใ ใ ใจใ ใใจ ใ ใงใใพใใใ
kono bijutsukan de ha, shashin wo toru koto ga dekimasen.
You cannot take photos in this museum.
ใใฎๆฐๆใกใฏ่จ่ใง่กจใใใจใใงใใพใใใ
ใใฎ ใใใก ใฏ ใใจใฐ ใง ใใใใ ใใจ ใ ใงใใพใใใ
kono kimochi ha kotoba de arawasu koto ga dekimasen.
I can’t express this feeling in words.
ๆฐๅนน็ทใฎไธญใงใฏใWi-Fiใไฝฟใใใจใใงใใพใใ
ใใใใใใ ใฎ ใชใ ใง ใฏใWi-Fi ใ ใคใใ ใใจ ใ ใงใใพใใ
shinkansen no naka de ha, Wi-Fi wo tsukau koto ga dekimasu.
You can use Wi-Fi on the Shinkansen.

- Grammar Point: ใใใจใใงใใ (~koto ga dekiru)
- JLPT Level: N4
- Meaning: Can, be able to
- Quick Explanation: ใใจใใงใใ is used to express ability or possibility, in other words, “can do something.”
So that’s how we use ใใจใใงใใ!
It’s polite, clear, and super practical, perfect for travelers, students, or anyone communicating in Japanese.
ใใชใใฏๆฅๆฌ่ชใ่ฉฑใใใจใใงใใใ
ใใชใใฏ ใซใปใใใ ใฏใชใ ใใจใ ใงใใใ
anata ha nihongo wo hanasu koto ga dekiru.
You are able to speak Japanese.
Now it’s your turn, try making your own sentences with ใใจใใงใใ and share what you can do in Japanese!
Your Sensei,
Hikari ๐ฉ๐ป๐ซ
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