English is used with these nouns:
accent, breakfast, dialect, dictionary, expression, fare, mustard, origin, settler, spelling, subtitle, tradition, translation, usage

plain
You'd have no trouble understanding his point if he'd written the article in plain English!

spoken, written
conversational
They taught conversational English to a group of Japanese students.

accented
He spoke in heavily accented English.

American, British, Indian, etc.
China
African American Vernacular, Black
BBC, the Queen's
proper
pidgin
Early, Middle, Modern, Old