firmabavsformabaWhat's the difference?

Which to use

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

#32,217
“firmaba” frequency rank
#13,048
“formaba” frequency rank
45265
confusion score

Side-by-Side Comparison

Feature firmaba formaba
Definition Primera persona del singular (yo) del pretérito imperfecto de indicativo de firmar o de firmarse. Primera persona del singular (yo) del pretérito imperfecto de indicativo de formar o de formarse.

Where the eye mixes firmaba and formaba

Muted = shared; highlighted = the visual trap. They share 6 letters in sequence.

7 ch
firmaba
7 ch
formaba

Visual trap between firmaba and formaba

A purely visual mix-up. firmaba ([fiɾˈmaβ̞a]) and formaba ([foɾˈmaβ̞a]) 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 a single letter - i in “firmaba” becomes o in “formaba”. Our composite confusion score for this pair is 45265, derived from the frequency rank of both members and their visual similarity.

firmaba is recorded at frequency rank #32,217, classified as averb, pronounced [fiɾˈmaβ̞a]. formaba is at rank #13,048, tagged as averb, pronounced [foɾˈmaβ̞a].

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 45265, this pair ranks #132,439 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of firmaba vs formaba

Shared letters: abfmr. Private to "firmaba": i. Private to "formaba": o.

"firmaba" · 7 letters · shape CVCCVCV  ·  "formaba" · 7 letters · shape CVCCVCV

Known mistypes of this pair

  • firmabaffirmaba · fimraba · firamba · firmaab · firmabba · firmava · firmbaa · firmmaba
  • formabafformaba · fomraba · foramba · formaab · formabba · formava · formbaa · formmaba

Frequently Asked Questions

Can "firmaba" and "formaba" be used interchangeably?
No. They are said differently ([fiɾˈmaβ̞a] versus [foɾˈmaβ̞a]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "firmaba" or "formaba"?
"formaba" is the more common of the two: it sits at frequency rank #13,048 in our Spanish list, against #32,217 for "firmaba". 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 "firmaba" and "formaba" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "firmaba" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "formaba" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #132,439 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "firmaba" and "formaba" also get mixed up with nearby pairs, the highest-scored neighbour is "firmaba vs firmaría". 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 #132,439 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