Conjugating Past Absolute Negation with "Lam" (Active & Passive)

1. Practice the Full Lam Conjugation

You already know the rule of لَمْ.
This level is mainly for reading and practicing the complete 14-form active and passive grids.
Keep three changes in mind:
• 5 forms: the final Dhammah becomes Sukoon
• 7 forms: Noon-e-I'raabi drops
• 2 feminine plural forms: the visible ending stays unchanged
Now the goal is to see these rules working across the full conjugation.

2. Complete Active Conjugation with Lam

PluralDualSingularGroup
لَمْ يَفْعُلُوْالَمْ يَفْعُلَالَمْ يَفْعُلْMasculine Ghaa'ib
لَمْ يَفْعُلْنَلَمْ تَفْعُلَالَمْ تَفْعُلْFeminine Ghaa'ib
لَمْ تَفْعُلُوْالَمْ تَفْعُلَالَمْ تَفْعُلْMasculine Haadhir
لَمْ تَفْعُلْنَلَمْ تَفْعُلَالَمْ تَفْعُلِيْFeminine Haadhir
لَمْ نَفْعُلْ—لَمْ أَفْعُلْMutakallim

Read it with the familiar 6 Ghaa'ib + 6 Haadhir + 2 Mutakallim structure.

3. Find the Rule Inside the Active Grid

Do not memorize the active table as 14 unrelated forms.
Look for the three familiar Lam effects:

ExampleEffectForms
لَمْ يَفْعُلْfinal Dhammah → Sukoon5
لَمْ يَفْعُلَاNoon-e-I'raabi drops7
لَمْ يَفْعُلْنَvisible form unchanged2

Once you recognize the group, the form becomes easier to predict.

4. Complete Passive Conjugation with Lam

PluralDualSingularGroup
لَمْ يُفْعَلُوْالَمْ يُفْعَلَالَمْ يُفْعَلْMasculine Ghaa'ib
لَمْ يُفْعَلْنَلَمْ تُفْعَلَالَمْ تُفْعَلْFeminine Ghaa'ib
لَمْ تُفْعَلُوْالَمْ تُفْعَلَالَمْ تُفْعَلْMasculine Haadhir
لَمْ تُفْعَلْنَلَمْ تُفْعَلَالَمْ تُفْعَلِيْFeminine Haadhir
لَمْ نُفْعَلْ—لَمْ أُفْعَلْMutakallim

The same 5 + 7 + 2 ending rules apply; only the active/passive vowel pattern changes.

5. Active and Passive: Same Seegah, Different Voice

When you move from active to passive, the grammatical person stays the same.

PassiveActivePerson
لَمْ يُفْعَلْلَمْ يَفْعُلْmasculine Ghaa'ib singular
لَمْ تُفْعَلِيْلَمْ تَفْعُلِيْfeminine Haadhir singular
لَمْ أُفْعَلْلَمْ أَفْعُلْMutakallim singular

First identify the Seegah, then decide whether the vowel pattern is active or passive.

6. Lam and Lan: Where Do They Look Different?

In the 5 Dhammah-ending positions, لَمْ and لَنْ look clearly different:
لَمْ يَفْعُلْ
Sukoon at the end.
لَنْ يَفْعُلَ
Fathah at the end.
But in the 7 Noon-dropping positions and the 2 feminine plural positions, their visible endings can look the same.
So the particle itself is important for recognizing the grammatical state.

7. Practice with the Root Nasara

MeaningFormVoice
he did not helpلَمْ يَنْصُرْActive
you (one woman) did not helpلَمْ تَنْصُرِيْActive
I did not helpلَمْ أَنْصُرْActive
he was not helpedلَمْ يُنْصَرْPassive
you (one man) were not helpedلَمْ تُنْصَرْPassive
I was not helpedلَمْ أُنْصَرْPassive

8. A Simple Reading Strategy

When you see a form with Lam, check three things:
1. Identify the Seegah from its prefix and ending.
2. Decide whether the verb is active or passive from its vowel pattern.
3. Check the Lam effect: Sukoon, Noon-drop, or no visible ending change.
If these three checks are clear, both full tables become much easier to read.