Normally yaktubu is indicative and inflected; layaktubanna is built on fatḥ when nūn attaches directly. Fatḥa here does not itself prove the accusative mood.
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Connection to Present-Tense Iʿrāb
The Two Emphatic Nūns: Forms and Rules
Normally yaktubu is indicative and inflected; layaktubanna is built on fatḥ when nūn attaches directly. Fatḥa here does not itself prove the accusative mood.