Requirements

Competence in language areas	Graphics and orthography
Can produce clearly intelligible continuous writing which follows orthography convention allowing some slips.
Phonetic side of speech	Can vary intonation and place sentence stress correctly in order to express finer shades of meaning.
Lexical side of speech	Have a good command of a broad lexical repertoire allowing gaps to be readily overcome with circumlocutions; little obvious searching for expressions or avoidance strategies; good command of idiomatic expressions and colloquialisms; occasional minor slips, but no significant vocabulary errors.
Grammatical side of speech	Consistently maintains a high degree of grammatical accuracy; errors are rare and difficult to spot.