laissèrentvslaisseronsWhat's the difference?

Which to use

“laissèrent” and “laisserons” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#46,853
“laissèrent” frequency rank
#32,040
“laisserons” frequency rank
78893
confusion score

Side-by-Side Comparison

Feature laissèrent laisserons
Definition Troisième personne du pluriel du passé simple de laisser. Première personne du pluriel du futur de laisser.

Where the eye mixes laissèrent and laisserons

Muted = shared; highlighted = the visual trap. They share 7 letters in sequence. laissèrent and laisserons follow the identical consonant-vowel pattern (CVVCCVCVCC). Same shape at a glance is often the real trap, independent of shared letters.

10 ch
laissèrent
10 ch
laisserons

Look-alike desk: laissèrent vs laisserons

A purely visual mix-up. laissèrent (\lɛ.sɛʁ\) and laisserons (\lɛ.sə.ʁɔ̃\) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 3 positions. Our composite confusion score for this pair is 78893, derived from the frequency rank of both members and their visual similarity.

laissèrent is recorded at frequency rank #46,853, classified as averb, pronounced \lɛ.sɛʁ\. laisserons is at rank #32,040, tagged as averb, pronounced \lɛ.sə.ʁɔ̃\.

Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.

With a confusion score of 78893, this pair ranks #24,596 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of laissèrent vs laisserons

Shared letters: aeilnrs. Private to "laissèrent": tè. Private to "laisserons": o.

"laissèrent" · 10 letters · shape CVVCCVCVCC  ·  "laisserons" · 10 letters · shape CVVCCVCVCC

Known mistypes of this pair

  • laisserons ← alisserons · laiserons · laisesrons · laisseorns · laissernos · laisseronns · laisseronss · laisserosn

Frequently Asked Questions

Is swapping "laissèrent" for "laisserons" ever safe?
No. They are said differently (\lɛ.sɛʁ\ versus \lɛ.sə.ʁɔ̃\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary French text, does "laissèrent" or "laisserons" show up more?
"laisserons" is the more common of the two: it sits at frequency rank #32,040 in our French list, against #46,853 for "laissèrent". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "laissèrent" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "laisserons" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #24,596 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "laissèrent" and "laisserons" also get mixed up with nearby pairs, the highest-scored neighbour is "laissèrent vs laisserez". Nearby pair
  • Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes

Confusion rank #24,596 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list