What decides which seat a hamza sits on?

For a hamza in the middle or at the end of a word, the seat is chosen by the strongest of two vowels: the vowel on the hamza itself and the vowel on the letter before it. The strength order is kasra, then damma, then fatha, then no vowel (sukun).

How do the vowels map to seats?

Kasra is strongest and gives the ya seat ئ. Damma gives the waw seat ؤ. Fatha gives the alif seat أ. When both surrounding positions carry sukun, the hamza is written bare on the line as ء.

Why does the tool need harakat?

The strongest-vowel rule depends on knowing the short vowels, which are usually omitted in everyday Arabic writing. Without harakat the checker cannot determine the expected seat and marks such hamzas as unverifiable rather than guessing.

What about hamza at the start of a word?

An initial hamza always sits on an alif: أ when it carries fatha or damma and إ when it carries kasra. The tool reports an initial hamza separately and flags any that uses a ya, waw, or bare seat at the start of a word.

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Arabic Hamza Form Checker

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Choosing the correct seat for a hamza is one of the trickiest parts of Arabic spelling. This checker scans your text, locates every hamza, and applies the standard orthographic rules to flag seats that look wrong.

How it works

Arabic distinguishes the seat of a hamza according to the vowels around it. For a medial or final hamza the rule is the strongest-vowel rule:

vowel strength:  kasra (i) > damma (u) > fatha (a) > sukun (no vowel)
take the stronger of (vowel on the hamza) and (vowel before it):
   kasra  -> ئ   (ya seat / nabira)
   damma  -> ؤ   (waw seat)
   fatha  -> أ   (alif seat)
   sukun  -> ء   (bare hamza on the line)

A hamza at the start of a word is governed by a simpler rule: it always sits on an alif, written أ for fatha or damma and إ for kasra. The tool reads any harakat next to each hamza, applies the matching rule, and compares the expected seat with the one actually written.

Tips and example

Because short vowels are usually left out, add harakat where you can: in سُئِلَ the kasra under the hamza forces the ya seat ئ, while in مُؤَدَّب the damma forces the waw seat ؤ. A bare hamza ء is correct after a long vowel or sukun, as in شَيْء. Where no vowels are visible the checker reports the hamza as unverifiable instead of producing a false alarm.