The Free Republic of Verdis does not have a written constitution. Instead, it has an uncodified constitution, similar to the United Kingdom, New Zealand, Israel, and Canada.
Verdis does have a list of basic laws, but not a single-file constitution, similar to Israel and the United Kingdom of Great Britain and Northern Ireland. The constitution of the Free Republic of Verdis is to slowly be created over centuries by the acts of parliament, but also still remain an uncodified constitution.
Most democratic countries have a written constitution, although it is not a requirement.