Stop switching back to English. Speak French with confidence at work and in real life.

Kickstart your French language journey with Fluent in 90-Day Reset.

It’s time to change the way you’ve been (not really) learning French

You’ve spent a lot of years/energy/money to learn French

If you’ve spent a lot of years/energy/money to learn French and still can’t use it with confidence and ease in real life… you’re probably thinking that you simply don’t have “talent for languages“.
There’s no other explanation, right?!

Well, there actually is a reason why you haven’t seen the desired results.

The problem is not in you, but in the way you’ve been learning so far.

Most people don’t fail to learn French because they’re lazy.
They fail because:

❌ They don’t know how to learn French effectively (they have no idea what to do beyond Duolingo).

❌ They never get real-life speaking practice.

❌ They feel judged or freeze when it’s time to speak.

❌ They’ve already failed before and feel hopeless.

Sound familiar?

Fluent in 90-Day Reset

🟢 A French colleague starts chatting and you don’t freeze or switch to English.

🟢 You chat every day with a French friend

🟢 You no longer overthink every word. You just speak.

🟢 French becomes part of your daily life (even if you live in the US).

That’s what’s waiting for you inside my program.

Who It’s NOT for

Who It’s For

✅ English native speakers able to have a conversation in French (even with a lot of mistakes) : A2, B1, B2
✅ People who live in France — or plan to — but still speak mostly English, or people who want to be immersed in a French environment in the US.
✅ Learners tired of apps, classes and grammar drills who want real-world fluency.
✅ Busy professionals, founders, and leaders who need a flexible, personalized approach.

I’m your language mentor, on a mission to help you speak with confidence.

Céline Guerreiro

Hi, I’m Céline Guerreiro, the founder of Languagemate.

I’m a language mentor.

🎯 𝗠𝘆 𝗲𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲: 19+ years in education, trained in Montessori and neuroscience, truly passionated about learning (I’ve been learning English for 5 years and Korean for a few months)

Before 2020, I couldn’t express myself in English, even though I studied English at school.
I felt dumb.
I decided to become fluent in English, but I didn’t want to rely on a teacher and feel like I was 15 again.

My degree in Neuroscience and my background in Montessori education allowed me to create my own method.

And by the way, I’ve been learning English in France without ever living abroad, attending courses or paying for teachers.

3900€

Cut down your study hours with efficient, evidence-based learning techniques

✅ 10 Coaching sessions to learn how to learn French effectively (45 minutes one-on-one sessions)

✅ 10 Speaking sessions with me to build confidence (45 minutes one-on-one sessions)

✅ A short conversation per day on WhatsApp from Monday to Friday to receive my feedback, gain some vocabulary and avoid making the same mistakes

✅ Access to hand-picked resources to help you read, write, understand, think, speak, watch and listen

✅ Get your own accountability partner: I’ll answer all your questions from Monday to Friday so you’re never stuck — and I’ll keep you motivated to take action

✅ 4 group sessions per week: « steps », Q&A office hours

I only work with up to five clients at a time. You can start whenever you want, as long as a spot is available.

My Commitment to Your Success: The 3-Month Progress Guarantee!

In just 3 months, you won’t feel lost or alone in your learning journey anymore.
You’ll know exactly what to do, how to do it — and you’ll genuinely enjoy the process.
You’ll have a reliable language partner (me), a clear plan, and my full support every step of the way.

If you don’t feel that transformation — if you finish the program still confused, discouraged, or unsure what to do next — I’ll keep working with you for free until you do.
That’s how confident I am in this process.

If that sounds fair, book a call.

Your success is my priority, and we’re here to support you every step of the way.

You’ve got this. And I’ve got your back.

Book a call to apply before the next round fills up.

We’ll hop on a quick call to make sure we’re the right fit to work together.

Cynthia's testimonial

« I highly recommend Céline if you’re looking to improve your fluency in French.
I had studied 5 years of French when I was a student but hadn’t used it in 30 years when I decided I wanted to restart my studies.
The method of teaching foreign language when I was a student was grammar based and focused on memorization but even after years of study I wasn’t fluent.

Céline’s Montessori approach plus her knowledge of neuroscience have proven to be excellent at getting me back on the path towards fluency.
Having Céline to practice speaking and writing with along with the native speaking language partner she pairs you with have been invaluable in improving my French.

Her advice on ways to immerse yourself in the language are also critical to getting back in practice and improving comprehension.
I am so glad I decided to work with her and I’m looking forward to practicing my French the next time I visit. »

Marie's testimonial

I currently have the pleasure of working closely with Céline Guerreiro as her student, and I can confidently say she is an outstanding professional and an excellent teacher.

Céline’s ability to creatively and precisely tackle the complex challenges her students experience in learning a new language is inspiring. She has a remarkable talent for helping American expats speak French fluently using the Montessori teaching method. What’s more, she consistently delivers results that meet and exceed expectations, instilling confidence in her students.

Céline’s dedication to her work is evident in everything she does. She is proactive, continually seeking ways to improve processes and outcomes that directly help her students. Her attention to detail ensures that nothing is overlooked. What truly sets her apart is her collaborative approach and excellent interpersonal skills, which make her a joy to work with and highly respected. Her proactive nature and her use of the Montessori Language Coaching Program will make you feel secure in her hands.

Whether you are learning because you will be positioned in France, have clients there, are planning a retirement there, or simply because you may enjoy traveling to the City of Light or elsewhere in France, I highly recommend Céline Guerreiro for helping you, someone you know or your staff who want to learn or refresh their knowledge of the French language. Her expertise, work ethic, and commitment to her students’ success are commendable.

Arnell achieved fluency in French and turned shame and embarrassment into pride and confidence!

« Before joining the Montessori language program, I wanted to improve my conversational French.

My previous learning experiences were more traditional, focusing on grammar and vocabulary using educational resources.

The program unlocked a more immersive French environment for me.

Engaging with podcasts, music, flashcards and reading materials in French has significantly enhanced my speaking, listening, and reading skills.

I feel much more confident speaking in French now.

The daily support and interaction have made a big difference and the continuous support is invaluable.

Every day, I send phrases to Céline and my language partner, Carole, and I always receive helpful feedback.

I appreciate my interactions with Céline and Carole because they help me overcome my shyness around native speakers, allowing me to engage more comfortably and confidently in conversations. »
Arnell

Become a Fluent French Speaker

Because learning a language is a real major accomplishment in one’s life. It is essential to put all the assets on your side now. We’ll hop on a quick call to make sure we’re the right fit to work together.