efectuadovsefectuaronWhat's the difference?

Which to use

“efectuado” and “efectuaron” are a confusable Spanish pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#16,567
“efectuado” frequency rank
#33,094
“efectuaron” frequency rank
49661
confusion score

Side-by-Side Comparison

Feature efectuado efectuaron
Definition Participio de efectuar. Tercera persona del plural (ellos, ellas; ustedes, 2.ª persona) del pretérito perfecto simple de indicativo de efectuar.

Where the eye mixes efectuado and efectuaron

Muted = shared; highlighted = the visual trap. They share 8 letters in sequence.

9 ch
efectuado
10 ch
efectuaron

Visual trap between efectuado and efectuaron

A purely visual mix-up. efectuado ([efekˈt̪wað̞o]) and efectuaron ([efekˈt̪waɾõn]) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 49661, derived from the frequency rank of both members and their visual similarity.

efectuado is recorded at frequency rank #16,567, classified as averb, pronounced [efekˈt̪wað̞o]. efectuaron is at rank #33,094, tagged as averb, pronounced [efekˈt̪waɾõn].

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 49661, this pair ranks #107,571 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of efectuado vs efectuaron

Shared letters: acefotu. Private to "efectuado": d. Private to "efectuaron": nr.

"efectuado" · 9 letters · shape VCVCCVVCV  ·  "efectuaron" · 10 letters · shape VCVCCVVCVC

Known mistypes of this pair

  • efectuadoeefctuado · efcetuado · efecctuado · efectaudo · efecttuado · efectuaddo · efectuaod · efectudao
  • efectuaroneefctuaron · efcetuaron · efecctuaron · efectauron · efecttuaron · efectuaorn · efectuarno · efectuaronn

Frequently Asked Questions

Is swapping "efectuado" for "efectuaron" ever safe?
No. They are said differently ([efekˈt̪wað̞o] versus [efekˈt̪waɾõn]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "efectuado" vs "efectuaron" - which ranks higher?
"efectuado" is the more common of the two: it sits at frequency rank #16,567 in our Spanish list, against #33,094 for "efectuaron". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

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

  • Full dictionary entry for "efectuado" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "efectuaron" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #107,571 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "efectuado" and "efectuaron" also get mixed up with nearby pairs, the highest-scored neighbour is "efectúan vs efectuaron". 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 #107,571 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list