When both parts use imperfect verbs, إِنْ makes the condition verb jussive, and the answer verb is jussive as well. This jussive form is called Mudari Akhaff.
Before the conditional construction:
تَجْلِسُ — you sit; أَجْلِسُ — I sit.
Inside it:
إِنْ تَجْلِسْ أَجْلِسْ
Both final dammahs become sukuns.
Do not leave one verb nominative while making only the other jussive.
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Conditional Sentences with إِنْ
When both parts use imperfect verbs, إِنْ makes the condition verb jussive, and the answer verb is jussive as well. This jussive form is called Mudari Akhaff.
Before the conditional construction:
تَجْلِسُ — you sit; أَجْلِسُ — I sit.
Inside it:
إِنْ تَجْلِسْ أَجْلِسْ
Both final dammahs become sukuns.
Do not leave one verb nominative while making only the other jussive.