Lam also governs the jussive in passive imperfect forms. The final indicative ḍamma becomes sukūn, or an inflectional nūn is dropped, depending on the position.
Word / formMeaning / explanation
يُفْعَلُ ← لَمْ يُفْعَلْit was not done to him/it.
تُفْعَلِينَ ← لَمْ تُفْعَلِيit was not done to you (one woman).
نُفْعَلُ ← لَمْ نُفْعَلْit was not done to us.
The passive template is identified by the ḍamma on the initial imperfect prefix; lam changes the ending. Replacing it with an active form or ordinary perfect verb would fail to reproduce this paradigm.