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The Ultimate C1 Grammar Course

Everything you need to master advanced English grammar

$25 / month with our membership

Feel confident with our 30-day money-back guarantee

Get access to the Ultimate C1 Grammar Course with Perfect English Grammar Membership

What's the biggest difference between people who learn to speak correct, elegant C1+ English

...and people who struggle at intermediate level for years?

Did they move to an English-speaking country?


Did they spend hours every day studying English?


Are they young and have no commitments?


Although these things can help, they're not the answer.

Myths about C1

1: Advanced English is the same as intermediate English with a few more words.

Reality - what got you here won't get you there.

When you start learning a language, it doesn't matter too much if you don't get everything right. It's okay to focus on communication rather than grammar.

But to get to C1 or C2, you need to be more strategic. Mistakes that were cute at A2 are embarrassing when you're aiming for native-like fluency. It's time to take grammar seriously.

2: I don't have time to get to advanced level.

You've been studying English for ten, twenty years. You can communicate and read emails from your international colleagues. But you want to really fulfil your potential and see how far you can go. And you have a secret dream to pass the Cambridge Proficiency exam.

Successful language learners have a clear plan (and it's not 'listen to the BBC as much as possible'). They know that a short, focused work session every day, with a strategy about what to study and regular, properly timed reviews that work with your brain so you can remember and use what you've learned, is the way to get out of the intermediate plateau and see real progress.

The good news is ...

Improving your English (and getting closer to your C1 or C2 goals) is easier than you think.

We can help you...

  • Understand the tricky parts of English grammar using our clear explanations.
  • Have a clear step-by step plan about exactly what to study next.
  • Remember everything using a study system that has been proven by 100 years of science.
  • Feel like you're finally making the kind of progress you want.

The Ultimate C1 Grammar Course

An online course that will help you take your grammar to C1 and beyond

I've spent the last twenty years working with ESL students.

  • Students who've struggled to reach advanced levels, no matter how many years they've been studying English, how many BBC podcasts they listen to, or how many language classes they take.
  • Students who still don't feel confident about grammar when they speak or write English, despite speaking their own language with a top 1% level of elegance and flair and being serious, highly-educated professionals in their own lives.
  • Students who feel like they can't express their true selves in English, so they worry about saying the wrong thing so that they're misunderstood - or even worse, offend someone.
  • Students who despite all these struggles know that speaking correct, elegant English is absolutely worth the trouble and who are very motivated to finally make serious progress.

The result is an easy-to-follow complete grammar system that gives you a clear, 'can't-fail' map for understanding, remembering and using elegant, correct, C1 level grammar when you speak and write English, so you can express yourself clearly, pass the advanced or proficiency exams, 'feel' which grammar is correct, and get your English closer to near-native level.

Get access to the Ultimate C1 Grammar Course with Perfect English Grammar Membership

What's inside the Ultimate C1 Grammar Course?

1: The clearest video explanations on the web

This is how you'll take the first step to mastering advanced grammar so that you can speak correct, elegant English.

Remember, the main reason have problems with grammar is because it's taught in little pieces and never clearly and systematically explained so that it's easy to understand.

By the time you've watched the Ultimate C1 Grammar Course videos, you'll be able to understand all the grammar you need to get to advanced level, and be able to see how it fits together as a system.

Here's how it works:

  • Very simple, clear explanations. I'll explain, step-by-step, all the grammar you need for C1 and show you how it all links together. We cover absolutely everything you need.
  • Short videos. We've made our videos really short so that you can fit them easily into your life and we don't waste your time with extra fluff.
  • Subtitles + PDFs. If you prefer to read or print out the explanations, you can do that too. Everything is printable and downloadable.

2: All the practice you'll ever need

Now you've understood all the C1 grammar, and you're ready to take on the English-speaking world!

However, it's important to really practise what you've learned properly (not just one exercise in a textbook!), or else our human brains will just forget it.

Here's where you'll use *powerful learning techniques* to memorise the new grammar so that you can remember it properly. This is how to 'feel' your grammar is correct.

Here's how it works:

  • Interactive exercises after every video. These help you fix the concepts in your head immediately.
  • Review exercises at the end of each section. These exercises combine everything you've learned in one section. This makes it a little bit more difficult.
  • Flashcards and extra reviews. Flashcards and extra reviews are our secret magic! They allow you to remember 95% of what you study forever and give you a deep feeling for correct grammar.

3: Fourteen modules covering all the C1 grammar

We cover everything you need in depth.

The modules are: The continuous aspect, the perfect and perfect continuous aspects, the unreal past, the subjunctive, advanced passives, modal verbs, pronouns, nouns, conditionals, participle clauses, cleft sentences, ellipsis, adjectives and adverbs.

Click here to see the full curriculum.

Here's how it works:

  • We cover everything you need for C1. We go into detail about all the advanced grammar concepts you'll need.
  • Everything is clearly organised. The course acts as a map to the grammar at this level.
  • We don't just review easy concepts. A lot of advanced grammar books look at the same grammar as B2, but use more difficult vocabulary. Our course helps you build advanced-level structures that are used every day by native speakers.

Get access to the Ultimate C1 Grammar Course with Perfect English Grammar Membership

Meet Seonaid, language enthusiast, Cambridge graduate and long-time teacher.

When she's not reading about learning and how brains work in her favourite London coffee shops, she runs Perfect English Grammar, a grammar website read by millions of people each month. She's also helped thousands of people improve their English and reach their dreams with her online courses.

Over her twenty years of teaching (and the research she did at Cambridge into how adults learn foreign languages), she's developed the Perfect English Grammar method, which helps students make fast progress, learn quickly and remember what they've learned so that they can use it in conversation.

The great grammar guarantee!

We're so excited about helping you take your English grammar to C1 level and beyond that we want to make it super easy for you to say yes.

Take 30 days to go through the first three sections of the Ultimate C1 Grammar Course.

If, after watching the super clear videos and doing the online exercises and getting your questions answered by us in the comments, you still don't feel like you're making real progress towards mastering advanced grammar, then just email Kate at and we'll cancel your subscription and refund all your money.

Frequently Asked Questions

Getting from intermediate to advanced is different from getting from beginner to intermediate. To reach C1 or C2, you need to fill in your grammar gaps, master the tricky grammar points that you're currently avoiding, and make all the grammar automatic so that it flows effortlessly. It's no longer true that a bit of grammar here and there is enough. This is the moment to invest some time in mastering grammar properly, with an organised system, clear grammar maps and enough reviews so that everything becomes natural and easy.

What you do is much more important than where you are. Students who reach advanced levels of English have an organised plan, study regularly, use effective study techniques and are serious about English. You can do all of these things from your home!

I understand, I really do! I have two children and a husband and I run my own business and go to the gym and visit my parents and see my friends. It's a lot, I know! If you're busy and you still want to improve your English and grow your skills so that you can reach your potential, you need the most efficient way to do that. In our courses, we give you a clear plan to follow and effective study techniques so that every minute you spend studying helps you reach your goals.

We don't have speaking lessons! But we do help you get the kind of grammar that you need to speak and write correctly at a high level. If you're interested in getting to C1 or C2 in English, it's really worth taking time to make sure that your grammar is excellent, which will also help your speaking.

I'd say that you should study the C1 course for 20 minutes a day. We call this 'core study' and it's enough that you'll really see a difference. We also suggest doing 'extra study' - this means podcasts, videos, books, and other things that you can fit into your day easily. We explain all of this in our 'welcome to the membership' course.

At the moment, we are only offering the membership, so you have to join the membership to do the C1 course. In the membership, you'll get the brand new Ultimate C1 Grammar Course, and 4 more Ultimate Grammar Courses, 12 advanced challenges and courses that will help you go deeper into important topics like tenses, phrasal verbs, idioms, collocations and listening, as well as help from the Perfect English Grammar team. Let's do this together!

The membership is a subscription that you pay automatically every month or every year. You can cancel your membership any time by emailing Kate ( There's no contract or obligation. We want you to absolutely love being part of Perfect English Grammar, so you have a full 30 days to enjoy the courses without any commitment. If you decide during those 30 days that the membership isn't right for you, just let us know and we will cancel your membership and refund all your money.

Get access to the Ultimate C1 Grammar Course with Perfect English Grammar Membership

Still not sure? We think this is perfect for you if ...

  • 1: You've had 'improve my English' on your to-do list for a while

    Although you're already a high achiever and you want to keep growing and reach your potential in life, you haven't quite managed to reach your dream level of English. The C1 course gives you a system and a clear plan, proper reviews and incredible support so that you can make fast progress.

  • 2: You have a secret goal to reach C1 or C2

    Maybe you haven't told anyone this yet, but you have a secret wish to pass the Advanced or the Proficiency Exam. What an achievement that would be! With the learning techniques and grammar system that you'd learn inside the membership, you'd be in the best possible position to pass.

  • 3: You're a global citizen (or you want to be one)

    You love the idea of travelling easily, having great conversations at international conferences and reading books and newspapers in English so that you feel part of the global conversation. However, your grammar isn't quite good enough *yet* for you to feel really confident. Our structured approach will help you whizz through those tricky unreal conditionals so that you can express yourself fluently.

  • 4: You're already at intermediate level

    You know the basics and you don't have problems with everyday English. Sure, you might need to check an irregular verb or two, but in general, you've already worked hard, you know the basics of grammar pretty well and you can travel or read in English without too much trouble.

  • 5: You realise that grammar is an important part of speaking correct, beautiful English

    It's not true for everyone! Some people don't care about grammar or speaking correctly (and that's fine!). But if you love language like we do, maybe you agree that grammar is both necessary and fascinating and allows you to speak elegantly, feel confident and be taken seriously.

  • 6: You have no problem investing a couple of hours per week

    We know you're busy! But how about if every minute you put into the course will help you move towards your English learning goals? In fact, you're already spending time on English - following English teachers on Instagram or Facebook and listening to the news on the BBC. The only problem is that without a clear strategy, you won't get the meaningful progress towards C2 that you'd like. Instead, you'll only get that feeling that another year has passed and you're not really any closer to speaking the correct, elegant English that you dream about.

  • 7: You're willing to test the Perfect English Grammar Membership with no risk

    We offer a full 30-day money-back guarantee. If you join, spend an hour on the C1 course and you don't feel like you've understood something that you've wondered about for years, then send us an email and we'll refund you in full, no problem. You can also cancel your membership at any time - no contract, no obligation.

By now, you already know the biggest difference between serious progress on your way to C1 and another year of wondering why you can't learn English all comes down to a proper structured approach to grammar, a clear plan and a method that really works.

  1. If your goal is to speak correct, elegant English and get to C1 or C2 level, you'll benefit from The Ultimate C1 Grammar Course.
  2. If you want to fulfil your potential and feel confident in English in the same way that you do in your own language, you'll benefit from the Ultimate C1 Grammar Course
  3. If you struggle to express yourself clearly in English so that people really know what you mean, you'll benefit from the Ultimate C1 Grammar Course.

If you're ready, we look forward to seeing you inside the course and helping you make crazy fast progress in 2023.

The Ultimate C1 Grammar Course is available as part of our membership

Monthly membership

$25 per month

  • Full access to all our English courses
  • Pay $25 USD automatically every month until you cancel
  • Cancel easily any time with one click
  • 30-day money-back guarantee

Annual membership

$240 per year

  • Full access to all our English courses
  • Pay $240 USD automatically every year until you cancel
  • Cancel easily any time with one click
  • 30-day money-back guarantee