What is the MOST common form of government system in Europe?

Answer 1

The most common form of government system in Europe is a parliamentary democracy. In this system, the executive branch derives its legitimacy from the legislature (parliament) and is accountable to it. Most European countries, including Germany, the United Kingdom, France, Italy, and Sweden, operate under some variant of parliamentary democracy, characterized by regular elections, political parties, and a system of checks and balances.