How do I demonstrate a good understanding of the English Language?

How you demonstrate a good understanding of the English Language will depend on what category of the rules you are applying under, but in most cases involves passing an approved English language test. UKVI uses the Common European Framework of Reference for Languages (CEFR), an international standard, to assess an applicant’s English Language ability. This uses a six-point scale, from A1 for beginners, up to C2 for those who have mastered a language. Level B1 is generally required for settlement and citizenship applications.