وَإِنْ لَمْ يَخْتَصَّ بِهِ، فَيَجِبُ أَنْ يَكُونَ فِي أَوَّلِهِ إِحْدَى حُرُوفِ الْمُضَارَعَةِ، وَلَا يَدْخُلُهُ الْهَاءُ.
Translation: If the pattern is not exclusive to verbs, the word must begin with one of the present-tense prefixes and must not admit the feminine hāʾ (the feminine suffix).
This is distinct from the first situation: when a pattern is shared with nouns, extra tests are required.
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Diptote Causes — Verb Patterns and Their Conditions
وَإِنْ لَمْ يَخْتَصَّ بِهِ، فَيَجِبُ أَنْ يَكُونَ فِي أَوَّلِهِ إِحْدَى حُرُوفِ الْمُضَارَعَةِ، وَلَا يَدْخُلُهُ الْهَاءُ.
Translation: If the pattern is not exclusive to verbs, the word must begin with one of the present-tense prefixes and must not admit the feminine hāʾ (the feminine suffix).
This is distinct from the first situation: when a pattern is shared with nouns, extra tests are required.