C1 English: advanced
C1 is for using English with control in academic and professional settings: putting the emphasis where you want it, making careful claims, and writing concisely and formally.
12 grammar lessons, 76 words in 4 topic decks, 10 graded texts, and writing and speaking practice with AI feedback.
What you can do at C1
- Listening: I can understand fast, idiomatic speech, including humour, irony and what people don't say directly.
- Reading: I can read long, complex texts in my field and outside it, noticing tone and stance.
- Speaking: I can express myself fluently and precisely, adjusting my register to the situation and the person.
- Writing: I can write well-structured reports, proposals and essays, and edit my own writing for clarity.
- Speaking: I can hedge, soften disagreement and persuade without sounding blunt.
What learners find hard at C1
Inversion (never have I seen…), cleft sentences, hedging (it would seem that…), and the compact structures of formal writing: nominalisation, participle and reduced relative clauses.
What the C1 lessons cover
Emphasis and focus
Never have I seen…, what I need is…: inversion and cleft sentences.
Hedging and stance
It would seem that…, arguably, to some extent: claims you can defend.
Concise formal writing
Nominalisation, participle clauses and reduced relative clauses for professional and academic English.
Cause, result and concession
Owing to, consequently, hence, much as I like the idea…: the connectors of a written argument.
All 12 C1 grammar lessons
Free to read, with examples and practice questions.
- Never have I seen…: inversion for emphasis
- What I need is…: cleft sentences for focus
- It would seem that…: hedging and stance
- Should you need…, Had I known…: inverted conditionals
- The rapid growth of…: nominalisation in academic and professional writing
- We recommend that she rest: the subjunctive
- The woman sitting by the window: reduced relative clauses
- Having finished the report, she left: participle clauses
- The meeting over, we went home: absolute clauses
- Much as I like the idea…: concession and contrast
- I hope so, so do I: ellipsis and substitution
- Owing to the delay…: cause and result in formal writing
C1 vocabulary
- Argument, evidence and stance: 18 words and phrases, each with a plain-English definition and an example
- Cause, consequence and contrast: 18 words and phrases, each with a plain-English definition and an example
- Leadership, negotiation and collaboration: 20 words and phrases, each with a plain-English definition and an example
- Science, technology and their impact: 20 words and phrases, each with a plain-English definition and an example
Reading at C1
- In defence of the four-day week, cautiously: A columnist weighs the evidence on the four-day working week, separating what the trials show from what enthusiasts claim.
- What happened when the cars left: A mid-sized city closed its centre to cars. A local journalist looks back after two years: what changed, for whom, and why the arguments haven't stopped.
- Counting what counts: An essay weighs the evidence on national life-satisfaction surveys and asks what such figures can and cannot tell governments.
- The hall that would not close: A magazine feature tells how an old fish market in a port city was saved from redevelopment, and why its success has brought new tensions.
- A child's coat: In a short story, a young woman raised abroad spends a summer with her grandmother on a Greek island and rediscovers part of the language she spoke as a child.
- Night work, seen clearly and then not: A critic reviews an exhibition of a painter's pictures of night workers, praising the early work but criticising the later paintings and the way the show is curated.
- My employer would like to know how I feel: An ironic opinion column describes a company app that asks staff about their mood, and argues that it has made employees more guarded rather than more open.
- Desk-sharing pilot: findings and recommendation: An internal memo reports on a six-month desk-sharing trial in one office and recommends extending it with changes rather than introducing it everywhere.
- Teodora Vasić, keeper of the ordinary: An obituary-style profile looks back on the life of a fictional archivist who rescued and preserved the everyday records of her small town.
- Funnier in Portuguese: A writer who learnt Portuguese as an adult reflects on whether speaking a second language really makes a person different.
Questions
What's the difference between B2 and C1?
At B2 you can say what you mean. At C1 you can say it the way you intend: with the right emphasis, tone and level of certainty, and concisely in formal writing.
Is there a C2 level in the course?
Yes, but it is small and new: one unit of six lessons on implication, irony, register and focus, with a deck and four readings. Like the rest of the course, it is still awaiting review by English teachers.
Can AI correct my writing at C1?
The app gives AI feedback on writing tasks, pointing out grammar, word choice and register. Like any AI it can be wrong, so treat it as a second opinion. It never sets your level on its own.