debívsdebíasWhat's the difference?

Which to use

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

#14,811
“debí” frequency rank
#44,095
“debías” frequency rank
58906
confusion score

Side-by-Side Comparison

Feature debí debías
Definition Primera persona del singular (yo) del pretérito perfecto simple de indicativo de deber. Segunda persona del singular (tú, vos) del pretérito imperfecto de indicativo de deber.

Where the eye mixes debí and debías

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. debí runs 4 letters (CVCV) against debías's 6 (CVCVVC) - the length gap alone is often enough to separate them once you know to check it.

4 ch
debí
6 ch
debías

Visual trap between debí and debías

A purely visual mix-up. debí ([d̪eˈβ̞i]) and debías ([d̪eˈβ̞ias]) 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) - “debí” sits inside “debías”. Our composite confusion score for this pair is 58906, derived from the frequency rank of both members and their visual similarity.

debí is recorded at frequency rank #14,811, classified as averb, pronounced [d̪eˈβ̞i]. debías is at rank #44,095, tagged as averb, pronounced [d̪eˈβ̞ias].

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 58906, this pair ranks #64,661 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.

Orthographic DNA of debí vs debías

Shared letters: bdeí. Private to "debí": -. Private to "debías": as.

"debí" · 4 letters · shape CVCV  ·  "debías" · 6 letters · shape CVCVVC

Frequently Asked Questions

Can "debí" and "debías" be used interchangeably?
No. They are said differently ([d̪eˈβ̞i] versus [d̪eˈβ̞ias]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "debí" vs "debías" - which ranks higher?
"debí" is the more common of the two: it sits at frequency rank #14,811 in our Spanish list, against #44,095 for "debías". 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 "debí" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "debías" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #64,661 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "debí" and "debías" also get mixed up with nearby pairs, the highest-scored neighbour is "debías vs Denia". Nearby pair

Confusion rank #64,661 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