What does the imperfect yadkhulūn contribute after jāʾa and raʾayta?

Supplementary Practice 22: Comparative Rhetorical Study of Sūrat al-Kāfirūn and al-Naṣr

• Making the act of entry vivid as an ongoing observed scene
• Negating every preceding past verb
• Commanding the listener to enter
• Specifying an exact historical year by its tense alone