To make an active Mudhaari' form negative, keep the active form unchanged and place لَا before it.
Examples:
لَا يَفْعُلُ
He does not do / will not do.
لَا تَفْعُلِينَ
You (one woman) do not do / will not do.
لَا أَفْعُلُ
I do not do / will not do.
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Negative Active Present
Negative Present Tense (Mudhaari' Manfi) - Active and Passive
To make an active Mudhaari' form negative, keep the active form unchanged and place لَا before it.
Examples:
لَا يَفْعُلُ
He does not do / will not do.
لَا تَفْعُلِينَ
You (one woman) do not do / will not do.
لَا أَفْعُلُ
I do not do / will not do.