لَمْ with Passive Forms

Defective Wāw Verb: Full Paradigm of دَعَا يَدْعُو with Morphological Explanations

PronounActive with لَمْPassive with لَمْ
هولَمْ يَدْعُلَمْ يُدْعَ
هما (مذکر)لَمْ يَدْعُوَالَمْ يُدْعَيَا
هملَمْ يَدْعُوالَمْ يُدْعَوْا
هيلَمْ تَدْعُلَمْ تُدْعَ
أنتَلَمْ تَدْعُلَمْ تُدْعَ
أنتِلَمْ تَدْعِيلَمْ تُدْعَيْ
أنالَمْ أَدْعُلَمْ أُدْعَ
نحنلَمْ نَدْعُلَمْ نُدْعَ

لَمْ يُدْعَ means “he was not called”: the final weak letter of passive يُدْعَى is removed in the jussive. لَمْ يَدْعُ instead denies that he called. Both show a jussive transformation but differ in voice.