Transformation Trainer · French Grammar Drills You know every rule. Together, they collapse.

Textbook drills test one rule at a time and telegraph which one, so the exercise's shape does the remembering for you. Here a sentence mutates under two or three instructions at once, unannounced, and every miss is diagnosed rule by rule.

Je vois Marie.
pronomnégation
Je ne la vois pas.

Built for people whose grammar collapses when rules collide.

  • Je vois Marie → Je la vois

    One rule alone is easy. The pronoun has to jump in front of the verb, and suddenly you hesitate.

  • ne l'ai pas vue

    Negation, elision and a participle that agrees, all firing in one short sentence.

  • donne-le-moi

    In the imperative the pronouns reorder and hyphenate. The drills never warned you.

  • pronoms + négation + accord

    Textbooks test rules one at a time. Real French stacks three at once, unannounced.

Rules you know in isolation fail when they collide.

Pronoun placement, negation, participle agreement, elision: each is easy alone. Stack them in one sentence and they interfere, and the textbook never trains that. This drills the collision directly, then shows you which rule, or which trigger, you dropped.

pronoun + neg. + tense

Stacked instructions

Transform one sentence under two or three changes at once: pronominalise, negate, shift tense, all together.

? which rules

Nothing telegraphed

The prompt doesn't announce which rule is in play, so you can't coast on the exercise's shape. You decide.

agreement ✗

Diagnosed rule by rule

Every miss is broken down per rule, so you see not just the right answer but which specific step you skipped.

the silent trigger

Catches the missed trigger

The hardest errors are the rule you didn't notice applied. The diagnosis names the trigger your brain skipped.

le · la · les → en/y

One syntax engine

Transformations are generated by a real syntax engine, not a fixed list, so the collisions stay fresh.

→ foundations

Built on the basics

Shaky on a sub-skill mid-drill? Links point you back to gender, conjugation, or tense practice.

Who it's for.

Recommended level
Recommended
A1
A2
B1
B2
C1
C2
Beginner Fluent

Intermediate to advanced

For when the individual rules are solid but they fall apart under pressure, the stage where French stops being a set of exercises and becomes one moving system. If single-rule drills feel too easy but real sentences still trip you, start here.

How to use it.

  1. 1

    Read the source and the instructions

    You get a sentence and two or three transformations to apply at once. No hint about which rules they trigger.

  2. 2

    Write the full transformation

    Apply every change together and type the resulting sentence, pronouns, agreement, negation and all.

  3. 3

    Read the per-rule diagnosis

    See each rule checked separately, including the trigger you missed, so the gap is precise, not vague.

What you need.

Any modern browser

Phone or laptop. Nothing to install, no account to make.

The rules, individually

You'll get the most from this once pronouns, negation and agreement each make sense on their own.

Willingness to be wrong

Stacked drills are hard on purpose. The misses are where the learning is, so lean into them.

Frequently asked.

What is a transformation drill?

You take a source sentence and rewrite it under one or more instructions, for example replace the objects with pronouns, make it negative, and shift the tense. The skill is applying several grammar rules to the same sentence at once.

Why stack multiple rules instead of drilling one at a time?

Because real French requires several rules simultaneously, and they interfere. A pronoun changes where negation sits; a tense shift changes participle agreement. Single-rule drills never train those interactions, which is exactly where most errors happen.

What does 'diagnosed rule by rule' mean?

When you miss, the tool doesn't just show the correct sentence. It checks each rule separately and tells you which one failed, including a rule whose trigger you didn't notice applied, so you fix the specific step rather than guessing.

Who is this for?

Intermediate to advanced learners who know the rules individually but watch them collapse under pressure. If single-rule exercises feel too easy but real sentences still trip you, this is the right level.

Is it free, and where does my progress go?

Free, no account. Everything runs in your browser, so your progress stays on your device.

Transform your first sentence.