مَا أَنَا رَأَيْتُ أَحَدًا
I did not see anyone.
If «aḥadan» is used for an unrestricted denial of seeing any person, the fronted «anā» does not by itself prove that another person did see someone. The scope of the negative object matters.
The example warns us not to infer a definite alternative agent every time a subject is fronted after negation. We must also analyze how general the object of the verb is and what contrast the context makes available.
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Fronting the Musnad Ilayh: Prominence, Restriction and Reinforcement
مَا أَنَا رَأَيْتُ أَحَدًا
I did not see anyone.
If «aḥadan» is used for an unrestricted denial of seeing any person, the fronted «anā» does not by itself prove that another person did see someone. The scope of the negative object matters.
The example warns us not to infer a definite alternative agent every time a subject is fronted after negation. We must also analyze how general the object of the verb is and what contrast the context makes available.