no: It is a Constitutional Monarchy.
The British are ruled by HM Queen Elizabeth II & a Bicameral House of Parliament, subject to election in the lower house(The House Of Commons) every 5 years.
Though a General Election may be called early if the commons believe (as a majority) that the current government is not fit for purpose.
A parliamentary republic. But Singapore's government started when it was ruled by Britain so the government was chosen by Britain
The Republic of Britain.
No
northern Ireland is part of great Britain. the republic of Ireland is an independent of great Britain but has little input into the affairs of northern Ireland
Iraq is a form of republic, similar to Britain's. This is stated in the name, The Republic of Iraq.
Independence from Britain.
Britain and the Dominican Republic
The Republic of Ireland is not in the United Kingdom or in Great Britain. Northern Ireland is in the United Kingdom, but not in Great Britain.
Great Britain
CAR - France Kenya - Britain South Africa has always been independent although Lesotho and Swaziland was colonized by Britain
Britain, the U.S., and France
What is known as Great Britain is an island that is a neighbour of Ireland, but has no physical contact with it. What you are referring to is Northern Ireland, which is on the island of Ireland, as is the Republic of Ireland.