لم

لم

"لم" is a negative particle meaning "did not" or "has not."

Here, 'لم' negates the verb in the past tense, indicating an action that did not happen.

لم أذهب إلى المدرسة أمس.

I did not go to school yesterday.

The word 'لم' negates the past-tense sentence, stressing the non-occurrence of the subject's ability to attend.

لم يتمكن من حضور الاجتماع.

He could not attend the meeting.

In this sentence, 'لم' is used to negate the action in the past tense, reinforcing its role as a negation particle.

لم يفعل شيئاً بخصوص المشكلة.

He did not do anything about the problem.