Sarf
Arabic root patterns
Arabic does not stack prefixes the way English does. It takes three consonants — the root — and pours them into a mould called a wazn (وزن). The root is the family. The wazn is the job.
ك ت ب
writing
كَتَبَ
he wrote
فَعَلَ
كِتَاب
a book — the thing written
كِتَاب
كَاتِب
a writer — the one who writes
كَاتِب
مَكْتُوب
written — the thing written upon
مَكْتُوب
مَكْتَب
desk / office — the place of writing
مَكْتَب
Pour a root
Same three letters. Different moulds. That is the whole science.
I
كَتَبَ
he wrote
II
كَتَّبَ
he made write
III
كَاتَبَ
he corresponded
X
اسْتَكْتَبَ
he asked to be written
فاعل
كَاتِب
writer
مفعول
مَكْتُوب
written
مفعل
مَكْتَب
desk
فِعَال
كِتَاب
book
Ten verb forms
The Quran uses these ten. Form I is the family home. II–X add a job: make, seek, split, share.
Form I
فَعَلَ / يَفْعَلُ
The simple action. Often needs an object: he wrote a book.
Form II
فَعَّلَ / يُفَعِّلُ
Intensive, or causative — to make another do it. عَلِمَ he knew → عَلَّمَ he taught.
Form III
فَاعَلَ / يُفَاعِلُ
The action is aimed at someone: struggle with, correspond with, fight.
Form IV
أَفْعَلَ / يُفْعِلُ
Causative — to bring the root about, or enter a state. سَلِمَ he was safe → أَسْلَمَ he submitted.
Form V
تَفَعَّلَ / يَتَفَعَّلُ
Reflexive of II: the object of form II becomes the subject. He made himself remember.
Form VI
تَفَاعَلَ / يَتَفَاعَلُ
Reciprocal of III — they do it to one another. Cannot be a single actor.
Form VII
انْفَعَلَ / يَنْفَعِلُ
The action happens; often involuntary. The sky splits — it does not split itself by will.
Form VIII
افْتَعَلَ / يَفْتَعِلُ
For oneself, or a stronger form I. He took something as his own.
Form IX
افْعَلَّ / يَفْعَلُّ
Colours and bodily states. Rare in the Quran — almost always faces turning.
Form X
اسْتَفْعَلَ / يَسْتَفْعِلُ
To seek the root, or to consider it so. غَفَرَ he forgave → اسْتَغْفَرَ he asked forgiveness.
Noun patterns you will keep meeting
فَاعِل
Doer of the root (ism fail).
مَالِك
owner
مَفْعُول
The one acted upon (ism maful).
مَغْضُوب
those angered upon
فَعِيل
A lasting quality (sifa mushabbaha).
رَحِيم
constantly merciful
فَعُول
Intensive — does this again and again.
غَفُور
oft-forgiving
فَعْلَان
The quality in fullness.
رَحْمَٰن
All-Merciful
مَفْعَل
Place or time of the root (ism makan / zaman).
مَسْجِد
place of sujud
فِعَال / فِعَالَة
Verbal noun — the act itself.
عِبَادَة
worship
تَفْعِيل
Verbal noun of form II.
تَنزِيل
sending down
Roots the Book leans on
ر ح م
mercy
الرَّحْمَٰن
the All-Merciful
فَعْلَان
الرَّحِيم
the Especially Merciful
فَعِيل
رَحْمَة
mercy
فَعْلَة
ع ل م
knowing
عَلِمَ
he knew
فَعِلَ · I
عَلَّمَ
he taught
فَعَّلَ · II
عَالَم
world / all that is known
فَاعَل
ع ب د
worship / service
نَعْبُدُ
we worship
فَعَلَ · I
عِبَاد
servants
فِعَال
عِبَادَة
worship
فِعَالَة
ق و م
stand / establish
مُسْتَقِيم
straight
مُسْتَفْعِل · X
أَقِيمُوا
establish
أَفْعَلَ · IV
قِيَامَة
the Rising
فِعَالَة
غ ف ر
cover / forgive
غَفُور
oft-forgiving
فَعُول
اسْتَغْفِرْ
ask forgiveness
اسْتَفْعَلَ · X
مَغْفِرَة
forgiveness
مَفْعِلَة
أ م ن
safety / faith
آمَنَ
he believed
أَفْعَلَ · IV
مُؤْمِن
a believer
مُفْعِل
إِيمَان
faith
إِفْعَال
و ح د
oneness
وَاحِد
one
فَاعِل
أَحَد
one (unique)
فَعَل
تَوْحِيد
declaring oneness
تَفْعِيل · II
س ج د
bow to the ground
اسْجُدُوا
prostrate
فَعَلَ · I
مَسْجِد
place of sujud
مَفْعِل
سُجُود
prostration
فُعُول
Turn on word meanings in Quran settings. Each English gloss sits under its Arabic word.