The form of government form of England?

There is none, England is under the control of the British government.

technically England has a constitutional monarchy, which is a a form of government in which a monarch acts as head of state within the perimeters of a written (i.e., codified), unwritten (i.e.,...

democratic monarchy (a country with a king or queen that also has an elected head of government)

In 1920, England was part of the UK's parliamentary system of government

Parliamentary First past the post.