What is C1 English?
C1 is the advanced CEFR English level. A C1 learner can understand a wide range of demanding, longer texts, express ideas fluently and spontaneously without obvious searching for words, and use English flexibly and effectively for social, academic and professional purposes.
What you can do at C1
- ✓Express ideas fluently and spontaneously, almost effortlessly
- ✓Use English flexibly for social, academic and professional life
- ✓Understand demanding, longer texts and grasp implicit meaning
- ✓Produce clear, well-structured, detailed text on complex subjects
- ✓Adapt tone and register precisely to any situation
Skills at C1
Listening
Understand extended speech even when not clearly structured and relationships are only implied.
Speaking
Express yourself fluently and spontaneously and use language flexibly for social and professional ends.
Reading
Understand long, complex factual and literary texts and appreciate distinctions of style.
Writing
Write clear, well-structured, detailed text on complex subjects with controlled style.
Grammar & vocabulary at C1
Key grammar
- Inversion and emphatic structures
- Advanced and mixed conditionals
- Nuanced modal and hypothetical language
- Discourse markers and cohesion
- Cleft sentences
- Sophisticated passive and reported forms
Vocabulary
Around 8,000+ words, including idiomatic, figurative and specialised professional and academic language.
Are you at C1? Quick self-check
If you can confidently do most of these, you are likely around C1.
- □I can speak fluently without searching for words
- □I can understand implicit meaning in complex texts
- □I can write detailed, well-structured documents
- □I can adapt my tone precisely to the situation
How to move from C1 to C2
The fastest way to progress is regular speaking practice with a teacher who corrects you and a clear plan for the grammar and vocabulary of the next level. At C2 (Proficiency), you'll be able to understand virtually everything and express yourself with native-like precision.