Question

Frequent need for the formation of coalitions would likely be indicative of an unstable multiparty system?

Answer 1

This is the most common system in nations that allow more than one political
party. Coalitions often break down when disputes arise. The answer is yes because most often there are chosen multiparty systems because because one party system usually don't get enough votes. As i sed before on multiparty systems there are disputes and this makes multiparty systems unstable.
Hope i helped. Peace ✌️