An entire clause can occupy a place in a larger grammatical construction—as a predicate, circumstantial expression, or another constituent. Such a clause is said to possess a syntactic position (محل من الإعراب). This concerns the position of the clause as a whole, not just the case-ending of its individual words.
«زَيْدٌ يَكْتُبُ وَيَشْعُرُ»
Zayd writes and composes poetry.
Both verbal predicates participate in telling us about Zayd. Coordinating them expresses that shared function. But if the second clause instead answers a question raised by the first, matching surface grammar alone does not compel coordination.