| Before the imperfect tenseverbs to negate the happening of an action in the imperfect past | |
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| Like other languages, negation in Arabic is the process of turning an affirmative statement into its contrary or of denying something by adding a word of negation to the affirmative statement | Zaid did not neglect his duty |
Before the imperfect tenseverbs to negate the happening of an action in the perfect past.
15.