I'rab · إعراب

Read every word as the grammar reveals it.

I'rab is the Arabic system of case, mood, and morphology that decides how each word relates to every other word in its sentence. We've mapped 128,219 tokens of the Quran to their full grammatical analysis — case, gender, number, root, lemma, prefix/stem/suffix decomposition — using the open Quranic Arabic Corpus.

Open any verse on /study and the Morphology pane shows it ayah-by-ayah, word-by-word.

Case · إعراب الاسم

Every noun in Arabic carries one of three cases. The case ending tells you the word's grammatical role — without it, the sentence is ambiguous.

NOMمرفوع

Nominative

Subject of a verbal sentence; the first noun of a nominal sentence (mubtada). Marker: ḍammah on the last consonant.

ACCمنصوب

Accusative

Direct object; predicate of kāna; circumstantial (ḥāl). Marker: fatḥah.

GENمجرور

Genitive

After a preposition; second term of an iḍāfah (possessive construction). Marker: kasrah.

Mood · إعراب الفعل

The imperfect verb (mudāri') takes one of three moods, marked on its last letter. Particles before the verb decide which.

INDمرفوع

Indicative

Default verbal mood (yaktubu — he writes / is writing).

SUBمنصوب

Subjunctive

After particles like an, lan, kay (he wants to write — yurīdu an yaktuba).

JUSمجزوم

Jussive

After lam, lammā, conditional particles (he did not write — lam yaktub).

Parts of speech

The Quranic Arabic Corpus uses a 45-tag set. The most common ones — open any of these to land on a verse where it appears.

Roots · جذور

Arabic builds families of words from a triliteral root. The root carries the base meaning; vowel patterns + affixes give the specific word. Tap to see every Quranic occurrence.

Morphological data: Quranic Arabic Corpus (Kais Dukes, 2011) · corpus.quran.com · GPLv3