ضَرَبْتُ الْيَوْمَ وَزَيْدٌ
Translation: Zayd and I struck (someone) today.
Ḍarabtu: past verb with the attached subject -tu.
Al-yawma: accusative time adverb; the intervening separator.
Wāw: coordinating particle.
Zaydun: nominative noun coordinated with the subject pronoun.
With no separator, the source requires anā as reinforcement for this construction.