French and English share thousands of words, and that is exactly the trap. Because so much vocabulary looks familiar, French speakers assume the two languages work the same way — then trip over "false friends", missing do-support, and verb tenses that map onto French grammar but not onto real English. The result is fluent-sounding sentences that native speakers still find slightly off.
NativeEnglish.fyi is built for this. Every grammar rule, every common mistake and every pronunciation drill is explained in French next to the English — so you understand not just what to say, but why French pushes you toward the wrong version.
These are the exact mistakes caused by French grammar patterns — explained so you never make them again.
Most mistakes French speakers make in English are not random — they are word-for-word translations of French grammar and vocabulary. Linguists call this first-language transfer. Once you can see which French habit is producing the error, it becomes surprisingly easy to correct. These are the transfer errors we see most often, along with the French logic hiding behind each one.
French and English are both SVO languages, so word order is rarely the problem — the danger is the vocabulary and verb structures that look identical but behave differently. Recognising these six patterns removes a large share of the errors francophone learners make every day.
Familiar-looking words with different meanings: actually means "in fact", not actuellement (currently); eventually means "in the end", not éventuellement (possibly); library is a place to borrow books, not a librairie (bookshop); sensible means "reasonable", not sensible (sensitive).
French forms questions by inversion or intonation, so the auxiliary "do" gets dropped: "You like it?" or "How you say?" instead of "Do you like it?" and "How do you say?". The same gap produces "I not know" instead of "I don't know".
French uses avoir for age — j'ai 20 ans — so learners say "I have 20 years". English uses the verb "to be" plus "old": "I am 20 years old". The same reflex causes "I have hungry" for j'ai faim ("I am hungry").
In French most adjectives follow the noun (une voiture rouge, un homme intelligent), so learners produce "a car red" or "a man intelligent". In English the adjective comes before the noun: "a red car", "an intelligent man".
French uses the passé composé (with avoir/être) for finished past events, which looks like the English present perfect. So "I have seen him yesterday" appears — but a finished time word like "yesterday" forces the simple past: "I saw him yesterday".
French depuis covers both English words, so "I live here since 3 years" appears. Use "for" with a length of time (for 3 years) and "since" with a starting point (since 2021). French also turns the tag n'est-ce pas? into a flat "no?" — English needs "isn't it?", "don't you?".
French is a syllable-timed language with stress fixed on the last syllable of a group, and several English sounds simply do not exist in it. English is stress-timed, with stress landing on different syllables word by word. This is why a French speaker with excellent grammar can still sound distinctly French. These are the specific sounds and patterns worth drilling.
French has no /θ/ or /ð/, so "the" becomes "ze" or "de", "think" becomes "sink" or "tink", and "brother" turns into "brozer". Both sounds need the tongue-tip between the teeth — voiceless for "think", voiced for "this".
The French "h" is always silent, so English "h" disappears: "'appy", "'ouse", "'ungry". Then, aware of the problem, learners over-correct and add an "h" where there is none: "h-eating", "h-apple". English "h" must be breathed only where it is written.
French stresses the last syllable, so English stress lands too far right: "ho-TEL" instead of "HO-tel", "de-VE-lop-MENT" flattened out. English stress is unpredictable and must be learned per word — get it wrong and the whole word sounds foreign.
French has one high front vowel, so the short /ɪ/ and long /iː/ merge: "ship / sheep", "live / leave" and "bit / beat" sound identical. The short /ɪ/ is relaxed and lax; the long /iː/ is tense with a wide smile.
French R is uvular — produced at the back of the throat (rrr as in Paris). English /r/ is made with the tongue curled back and never touching, closer to the middle of the mouth. Using the throaty French R instantly marks the accent.
French P, T and K are unaspirated — no puff of air — so English "pin" and "top" sound like "bin" and "dop" to native ears. At the start of a stressed syllable, English P/T/K need a small burst of breath. Hold a hand to your mouth on "pen" and feel it.
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Learn why "Did you eat?" sounds like "Djeetyet?" — 354 patterns explained in French. No classroom teaches this.
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French has no /θ/ (as in "think") or /ð/ (as in "this"), so the brain replaces them with the nearest French sounds — usually "s"/"z" or "t"/"d". That is why "the" becomes "ze" and "think" becomes "sink". The fix is placing the tongue-tip lightly between the teeth, which the app drills with audio.
Because French expresses age with the verb avoir (to have): j'ai 20 ans literally means "I have 20 years". English uses "to be" plus "old": "I am 20 years old". The same reflex produces "I have hungry" for j'ai faim, which should be "I am hungry".
False friends (faux amis) are words that look identical in both languages but mean different things. "Actually" means "in fact" not actuellement (currently); "eventually" means "in the end" not éventuellement (possibly); "library" is where you borrow books, not a librairie (bookshop). NativeEnglish.fyi lists the most dangerous ones with French notes.
French forms questions by inversion (Aimes-tu?) or intonation (Tu aimes?) and has no equivalent of the auxiliary "do". So learners say "You like it?" or "How you say?" instead of "Do you like it?" and "How do you say?". English needs "do/does/did" in almost every question and negative that has no other auxiliary.
French depuis covers both, which is why "I live here since 3 years" is so common. Use "for" with a length of time ("for 3 years", "for a week") and "since" with a starting point ("since 2021", "since Monday"). English also prefers the present perfect here: "I have lived here for 3 years".
In French most adjectives follow the noun — une voiture rouge, un film intéressant — so learners produce "a car red" or "a film interesting". In English the adjective almost always comes before the noun: "a red car", "an interesting film". Once you notice the habit it is one of the fastest errors to fix.
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