Questions & Answers about لم ينس الدين.
Why is the verb spelled ينس here instead of its normal form ينسى?
The negative word لم forces the verb into a grammatical state called the jussive mood. When a verb ends in a weak letter, like the alif maqsuura (ى) in ينسى, the jussive mood causes that final weak letter to drop completely. That is why it is written as ينس.
Since the final letter was dropped from ينسى, how do I pronounce the new word ينس?
You pronounce it as yansa. Even though the final weak letter drops, the short a vowel (fatha) that was on the letter siin (س) stays there. The ending just sounds a bit shorter and more abrupt than the original yansaa.
The word الدين looks exactly like the word for the religion. How do we know it means the debt here?
They share the same spelling but have different short vowels. The debt is pronounced الدَّيْن (ad-dayn), while the religion is pronounced الدِّين (ad-diin). In Arabic, you often rely on context to tell them apart, and forgetting a debt makes perfect sense here.
The translation says He did not forget (past tense), but isn't the verb based on the present tense form?
Yes, it is! The word لم is a special negative particle. It is always followed by a present tense verb, but it acts like a time machine, flipping the meaning of the sentence into the past tense. This is the most common way to say did not in Modern Standard Arabic.