Small ゃ ゅ ょ: Why きゃ Is One Beat but きや Is Two
A small ゃ, ゅ, or ょ doesn’t add a beat — it merges with the kana before it into a single sound. きゃ is one beat; き-や is two. These combined sounds are called yōon (拗音), and getting the beat count right matters more than it looks.
What Small ゃゅょ Do
You write them after an い-row kana (き, し, ち, に, ひ, み, り, ぎ, じ, び, ぴ) and shrink them: きゃ, しゅ, ちょ. The two characters together make one mora — a single beat, not two.
If they were full-size (きや), they would be two separate beats — き then や. That difference can change the word entirely.
The Full Chart
There are only eleven base kana that take a small ゃゅょ, and every one of them is an い-row kana. That is the whole system: thirty-three combinations, no exceptions to learn.
| Base | + ゃ | + ゅ | + ょ | Romaji |
|---|---|---|---|---|
| き | きゃ | きゅ | きょ | kya / kyu / kyo |
| し | しゃ | しゅ | しょ | sha / shu / sho |
| ち | ちゃ | ちゅ | ちょ | cha / chu / cho |
| に | にゃ | にゅ | にょ | nya / nyu / nyo |
| ひ | ひゃ | ひゅ | ひょ | hya / hyu / hyo |
| み | みゃ | みゅ | みょ | mya / myu / myo |
| り | りゃ | りゅ | りょ | rya / ryu / ryo |
| ぎ | ぎゃ | ぎゅ | ぎょ | gya / gyu / gyo |
| じ | じゃ | じゅ | じょ | ja / ju / jo |
| び | びゃ | びゅ | びょ | bya / byu / byo |
| ぴ | ぴゃ | ぴゅ | ぴょ | pya / pyu / pyo |
Two rows deserve a note. し and ち do not become sya and tya. They become しゃ (sha) and ちゃ (cha), which is why romaji systems disagree about them. And じゃ, じゅ, じょ are simply ja, ju, jo; there is no separate zya sound in modern Japanese.
Small vs Full
病院 (びょういん) vs 美容院 (びよういん) is the classic pair — one beat of difference, two different places.
Why the Beat Count Matters
English speakers count syllables. Japanese counts mora, and a mora is a unit of time, not a chunk of sound. Each one takes roughly the same length. That is why Japanese sounds evenly paced next to the stressed-and-unstressed rhythm of English.
A small ゃゅょ merges into the kana before it and the pair occupies a single mora. A full-size や takes a mora of its own. So びょういん and びよういん differ by one beat of time, and to a Japanese ear that is as obvious as the difference between “hospital” and “horse pital” is to yours.
Three places this bites. Pitch accent is assigned per mora, so miscounting moves where your pitch falls. Listening questions lean on it, because examiners know it separates students who have practised aloud from those who have not. And haiku counts 5-7-5 in mora, not syllables.
N5 Words You Already Know
You have been using yōon since your first week without necessarily noticing. Counting the beats out loud on familiar words is the fastest way to make the pattern automatic.
2 beats: きょ + う
3 beats: か + い + しゃ
3 beats: しゃ + し + ん
4 beats: びょ + う + い + ん
3 beats: りょ + こ + う
2 beats: ひゃ + く
Sit with 今日 (きょう) for a moment. Three kana on the page, so it feels like three beats. But きょ is one and う is one. Two. Say き-ょ-う as three and every listener knows how long you have been studying.
In Katakana
Katakana uses the same system with ャ, ュ, ョ: シャツ (shirt), ジュース (juice), チョコレート (chocolate). Nothing new to learn.
Katakana goes further, though. To write foreign sounds that Japanese does not natively have, it also shrinks ア, イ, ウ, エ, オ and attaches them to unexpected bases: フィ (fi), ティ (ti), ウェ (we), ヴァ (va). These are a modern extension of the same shrinking principle, and they appear constantly in loanwords.
Three Common Mistakes
- Writing the kana full-size by hand. On a keyboard this never happens, but on the JLPT answer sheet and in class it does. A full-size や changes the word, and examiners mark it as an error rather than a slip of the pen.
- Adding a beat when speaking. きょう said as three beats is the single most common pronunciation mistake among learners who studied mainly from text. It is fixed by reading aloud, not by studying more charts.
- Assuming romaji tells you the beats. “kyou” looks like four letters and two vowels, and tells you nothing about the two-mora rhythm. Once you can read kana, stop using romaji for pronunciation.
Typing Them
Just type the combined sound: kya → きゃ, sho → しょ, ju → じゅ. For a standalone small ゃ, type lya or xya.
Teacher's Note
Say きゃ as a single, smooth syllable — don't pronounce き and や separately. Together with the small っ and long vowels, yōon is part of the same big idea: count your mora correctly and Japanese rhythm falls into place.
Get the rhythm right
Nihongo Pass uses native audio so combined sounds like きゃ and びょう land as one clean beat.