Attached Trilateral (Mujarrad) - Bab 7: Fa'laah & Weak Root Rules

1. Mulhaq Bab 7: Fa'laah

This level studies Bab 7 of Thulaathi Mulhaq bi-Rubaa'i Mujarrad.
The example is قَلْسَىٰ, based on the triliteral root ق، ل، س.
The lesson treats the final weak element as the added feature that gives the form its quadrilateral-like shape.

2. Root, Masdar and Meaning

The base root is ق، ل، س.
Its verbal noun is قَلْسَاةٌ.
In this lesson, the taught meaning is wearing a cap in place of foot-wraps/socks.

3. Why قَلْسَيَ Becomes قَلْسَىٰ

The original form taught here is قَلْسَيَ.
Its final Ya is vowelled and the letter before it has Fathah.
Because of that, the Ya changes to Alif:
قَلْسَيَ → قَلْسَىٰ.

4. Complete Sarf-e-Sagheer

Recite the complete active paradigm together:
قَلْسَىٰ يُقَلْسِيْ قَلْسَاةً فَهُوَ مُقَلْسٍ الأَمْرُ مِنْهُ قَلْسِ وَالنَّهْيُ عَنْهُ لَا تُقَلْسِ
It contains active past, active Mudhaari', Masdar, Ism Fa'il, imperative, and prohibitive.

5. Weak Ending: Three Forms to Notice

The weak ending appears differently in three important forms.

FormCategory
قَلْسَىٰActive past
مُقَلْسٍIsm Fa'il
قَلْسِImperative

In the Ism Fa'il and imperative, the final weak letter is no longer written in the displayed form.

6. Understand the Paradigm by Slots

FormCategory
قَلْسَىٰActive past
يُقَلْسِيْActive Mudhaari'
قَلْسَاةٌMasdar
مُقَلْسٍIsm Fa'il
قَلْسِImperative
لَا تُقَلْسِProhibitive

This lesson does not add passive forms or Ism Maf'ool to the taught paradigm.

7. A Simple Map of the Level

Remember these points:
1. This is Mulhaq Bab 7.
2. Example: قَلْسَىٰ, based on root ق، ل، س.
3. Masdar: قَلْسَاةٌ.
4. The original past form taught here is قَلْسَيَ.
5. A vowelled Ya preceded by Fathah changes to Alif: قَلْسَيَ → قَلْسَىٰ.
6. Active Mudhaari': يُقَلْسِيْ.
7. Ism Fa'il: مُقَلْسٍ; command/prohibition: قَلْسِ / لَا تُقَلْسِ.
8. Passive forms and Ism Maf'ool are not part of this lesson's taught paradigm.