efectuarvsefectuaronWhat's the difference?

Which to use

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

#9,632
“efectuar” frequency rank
#33,094
“efectuaron” frequency rank
42726
confusion score

Side-by-Side Comparison

Feature efectuar efectuaron
Definition Ejecutar, poner en obra, llevar a cabo una acción. Tercera persona del plural (ellos, ellas; ustedes, 2.ª persona) del pretérito perfecto simple de indicativo de efectuar.

Where the eye mixes efectuar and efectuaron

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

8 ch
efectuar
10 ch
efectuaron

Look-alike desk: efectuar vs efectuaron

A purely visual mix-up. efectuar ([efekˈt̪waɾ]) 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 2 extra letter(s) - “efectuar” sits inside “efectuaron”. Our composite confusion score for this pair is 42726, derived from the frequency rank of both members and their visual similarity.

efectuar is recorded at frequency rank #9,632, classified as averb, pronounced [efekˈt̪waɾ]. 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 42726, this pair ranks #146,641 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of efectuar vs efectuaron

Shared letters: acefrtu. Private to "efectuar": -. Private to "efectuaron": no.

"efectuar" · 8 letters · shape VCVCCVVC  ·  "efectuaron" · 10 letters · shape VCVCCVVCVC

Known mistypes of this pair

  • efectuareefctuar · efcetuar · efecctuar · efectaur · efecttuar · efectuarr · efectura · efecutar
  • efectuaroneefctuaron · efcetuaron · efecctuaron · efectauron · efecttuaron · efectuaorn · efectuarno · efectuaronn

Frequently Asked Questions

Is swapping "efectuar" for "efectuaron" ever safe?
No. They are said differently ([efekˈt̪waɾ] versus [efekˈt̪waɾõn]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "efectuar" vs "efectuaron" - which ranks higher?
"efectuar" is the more common of the two: it sits at frequency rank #9,632 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

Eye-level mix-up between "efectuar" and "efectuaron" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "efectuar" 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 #146,641 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "efectuar" 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 #146,641 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