The 7 Day English Challenge

🚀 Fix 83 Common Mistakes Polish People Make

The unique video and eBook course created by a native speaker who’s taught over 3,000 hours to Polish learners just like you.

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Have You Been Learning English for Years... But Still Feel Unsure?

Hi, I'm Matt. I know how frustrating it is to study hard but still make the same little mistakes.

You watch Netflix in English, read articles, maybe even have lessons — but something still doesn’t feel right.

You hesitate with prepositions like "in", "on", or "at". You say words like "eventually" thinking it means the same as "ewentualnie." You use Present Perfect — but not always correctly.

And it’s not your fault.

Most English resources aren’t made for Polish learners. They don’t show you the traps that Polish speakers fall into. And even when they do, the grammar explanations are confusing and boring.

And what you don’t realise is how small mistakes are still holding you back from sounding fluent.

That’s why I made the 7 Day English Challenge!

A Shortcut Through the Most Frustrating English Problems

Based on my 3,000 teaching hours I found these exact areas are where Polish learners trip up.

In just 20-30 minutes per day for 7 days, we'll fix 83+ of the most common mistakes that hold you back.

Together, we will:

Correct 90+ mispronounced English words

Master 20+ key prepositions - in, on, and at etc.

Understand 15+ false friends that confuse Polish speakers

Learn 12+ unusual plural forms that most people get wrong

Understand the Present Perfect better - and when NOT to use it

Correct 17+ Aspects of common speech

Be able to correctly use 7 essential phrases for talking about life which all my students get wrong

Understand how to correctly speak about large and small numbers and amounts

Learn words and phrases that will streamline your language learning

No new vocabulary you won't need

No complex grammar you won't use

No using words with the wrong pronunciation

I know, how frustrating it can be when people around you, maybe even your own English teacher, don't correct your mistakes.

That's why I created the 7 Day English Challenge!

"Some of the common mistakes really surprised me, I had no idea! I've really been saying "client" and "firm" wrong for years haha. It feels like being with you in a real class. I’m hoping for a second course like this!" Klaudia, Warszawa

Get the FULL course today for ~~247 pln~~ just 147 pln (-40%)

Lifetime access to everything you need to overcome the 83+ most common mistakes!

What's included in the 7 Day English Challenge?

A 22-page Study ebook that outlines the 83+ most common mistakes Poles make - with examples, corrections, and clear explanations.

A 28-page workbook filled with exercises that test your understanding - and includes all the answers so you can check yourself.

16 flashcard sets (Quizlet) - two for each day (pronunciation and vocab), and two that cover everything so you can review it all whenever you like.

14 videos (about 90 minutes total) where I guide you through the toughest mistakes in a relaxed, friendly way.

A 10% discount on a package of 10 private lessons with me (worth 200 pln) - in case you want to keep improving after the challenge.

Get the FULL course today for ~~247 pln~~ just 147 pln (-40%)

4.7 / 5 based on 562+ students

Let's take a look inside... 👀

Study Book Sample

Simple, clear explanations with my own comments based on the most frequently asked questions...

Exercise Book Sample

Carefully designed exercises that make sure you can choose the right answer in realistic situations...

What will you get from the 7 Day English Challenge?

Confidence when you speak – feel proud of the way you speak English and enjoy every conversation

Save time – 3000+ hours of a native teaching time put into one course designed specifically for you

Progress you can measure – Real structure to overcome 83+ problems with improvements you can feel and measure

Correct pronunciation – Sound natural and fluent! Impress your friends, colleagues, boss and even native speakers

A foundation for lasting improvement – The habits and tools you gain in 7 days will keep improving your English long after the challenge ends

The Complete Step-By-Step Method

To Feel More Confident

Study eBook (22 pages): Follow a clear path through 83 common mistakes and finally know how to say things the right way.

Exercise eBook (28 pages): Practice everything you learn with real examples, gap-fill tasks, and instant feedback - no guesswork.

14 videos (5-10 mins per day): Short, easy-to-follow guidance that explains each mistake in plain English - perfect for busy learners.

16 Flashcard sets: Review pronunciation, grammar, and vocab with interactive sets built to help you remember fast.

10% Discount on Lessons: Finish the challenge, and I’ll reward your effort with 10% off a 1-to-1 lesson pack - for faster, personal progress. (worth 200pln)

247 pln only 147 pln today

What do my students say about the course?

This was made for people like me...

"...I work in an international company and I always felt nervous speaking during meetings. After the challenge, I felt more sure of myself. I even got a compliment from my manager. The workbook is very helpful and the flashcards make it easy to review while commuting."

Kasia, Krakow

Only a native speaker would notice...

"I’m studying English philology, and I still found this challenge useful. It covered things no teacher had ever explained clearly, especially false friends and small habits only a native speaker would notice. It’s simple and very effective."

Paweł, Łódź

Like being with you in a real class

Klaudia, Warszawa

I feel much more confident!

"The best part is that everything is explained without difficult grammar terms. Just clear, real English that we use every day. I finally understand when not to use present perfect - I had been making that mistake for years. I feel much more confident now."

Zofia, Poznań

It changed the way I speak English

"I didn’t expect much from a 7-day challenge, but it actually changed the way I speak English. The exercises are practical, and the video explanations felt like a private lesson. I recommended it to two friends. It's perfect for Polish learners because it focuses exactly on our problems."

Tomasz, Wrocław

Good Simple Explanations

"You make everything feel easy by such good, simple explanations... The exercises really help to put the corrections into practice and the video content was super valuable for me"

Darek, Gdynia

Ready To Master The 7 Day English Challenge ?

Get the FULL course today for just ~~247 pln~~ 147 pln (-40%)

4.7 / 5 based on 11,000+ students

Who Is This Challenge For?

The 7 Day English is PERFECT for you if:

You are at an intermediate English level - B1, B2 or C1 is the golden zone

You like learning in short sessions (20–30 minutes) with videos, exercises, and flashcards

You’re ready to fix the most common mistakes Poles make in just 7 days

You want to sound more natural and confident at work, school, or while traveling

You’ve learned English for years but still doubt yourself when speaking

❌ It's NOT for you if:

You're a total beginner or super advanced

You prefer long, academic grammar courses with lots of theory

You are not Polish (it may be fine for nationalities who make similar mistakes like Ukrainians) - the course is specifically designed for Poles and will not be so useful to a Spanish speaker for example

My Story

Hi, I’m Matt.

Living for 3 years in Wroclaw and Krakow, I’ve spent thousands of hours teaching English - both in classrooms and online.

I saw the same thing again and again: Polish students who worked hard, studied for years… and still made small mistakes that caused confusion.

They felt unsure at work. They hesitated in conversations. And even though they knew a lot, they didn’t feel confident.

That frustrated me - because it wasn’t their fault. They were smart. They just weren’t getting the right guidance.

So I decided to build something better.

I took all the most common mistakes I’d seen - in over 3,000 hours of teaching Polish learners - and created a simple, clear, 7-day plan to fix them.

No grammar lectures. No boring textbooks. Just practical help that actually works. The result?

The 7-Day English Challenge.

It’s the course I wish every student had from the beginning. And now it’s helping people feel more confident, sound more natural, and finally enjoy speaking English again.

If you’re ready to stop guessing and start feeling good about your English - I’d love to help you get there.

Get the FULL course today for ~~247 pln~~ just 147 pln (-40%)

FAQs

What if it takes me longer than 7 Days?

You can work as fast or slow as you like, you have lifetime access to all materials. If you don't have 20-30 mins every day it doesn't matter, you can do one day each week for 7 weeks if you like.

How and when will I receive the material?

Immediately after you have signed up you will receive an email from me that includes all the material as attachments. The video content is in the ebooks by clickable links and QR codes to videos.

Will this course help me get to B2 level or C1?

This course will help you improve your English level but isn't set at any specific level. If you feel that you are B1-C1 level this course is perfect for you and will help a lot.

What happens if I get stuck or have questions?

On the final purchase page I offer you the opportunity to join our Whats App group where you can ask me directly any questions about the course or anything else that you are having difficulty with. If it's a technical problem, you can email me.

Is it better to do the course on my laptop or by printing it?

This is totally up to you. You should do it the way that you think you will enjoy and learn best. The course is designed to work on screen or in print.

How do I access the video content?

At the start of the study and exercise ebooks I provide QR codes and web links so you can access the videos easily whether you prefer to print the course or do it on your laptop or mobile device.

Do I need to pay for the Quizlet app to use the flashcards?

No, the free version works fine. The app will encourage you to upgrade but you can choose "continue with free version".

I already use a different app to do flashcards, do I have to use Quizlet?

When you sign up to the 7 Day English Challenge I will provide you with all the flashcard material also in spreadsheet format (.xlsx) so you can import it to any platform or app you like.