Richard, now it gets complicated, OK I will do my best my friend

Scotsman are Britisn but not English ( actually Scotsman say they are Scotish and thats it!!!)

British Isles incl. Great Britain , Ireland and some smaller isles ( isle of Man etc)

Great Britain is the largest of the British Isles

United Kingdom is England, Wales, Scotland and Northern Ireland ( full Title United Kingdom of Great Britain and Northern Island as on our passports)

God Save the Queen!!!

Hope that enlightens you