تَمَارَضَ زَيْدٌ
Translation: Zayd feigned being ill.
FeatureExplanation
Rootم ر ض
Verb formVI
Pastتَمَارَضَ
Imperfectيَتَمَارَضُ
Verbal nounتَمَارُضٌ
زَيْدٌNominative subject
Only one subject occurs. Therefore it is wrong to say Form VI must always take two subjects. Here the function is pretence, not reciprocity.