could
/kəd/
"could" is a 5-letter English headword indexed on PlainSpell.
The verdict
“could” has 7 generated spelling variants in the English index at frequency #92. The variants make it a useful spelling check.
- #92
- frequency rank, English
- 5,599
- “C” headwords
- 7
- tracked misspellings
- 20
- confusable pairs
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - simple past of can
Corpus desk
Index EN-could · could · English
could · rank #92 · 7 variants · 20 confusables
- FREQ-CORE #92
- LEN-MID 5 letters
- VOW-2 2 vowels
- CONFUS-HIGH 20 pairs
- VAR-MID 7 variants
- BOOK-DENSE 5,599
- PHOTO-FINISH then
Nearest frequency peer: then (-1 rank slots)
Read with this headword: Spelling guide for this pattern
Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.
Frequency neighbourhood for “could”
Lower corpus rank = more everyday usage (inverted bar length for readability)
- think
think
99,912 corpus weight
- any
any
99,911 corpus weight
- then
then
99,910 corpus weight
- could
could
99,909 corpus weight
- back
back
99,908 corpus weight
- these
these
99,907 corpus weight
What this shows Bars show where “could” sits against the nearest ranked English headwords in the FrequencyWords band, not a reprint of letter-browse containment.
Visual similarity to commonly confused words
How many letter changes separate each confused pair (Levenshtein distance, normalized).
Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).
| Property | Value |
|---|---|
| Headword | could |
| Language | English |
| Part of speech | Verb |
| IPA | /kəd/ |
| Letters | 5 |
| Frequency rank | #92 |
| Misspellings tracked | 7 |
| Confusable pairs | 20 |
| Source | Wiktionary (kaikki.org) |
Where “could” sits in English frequency
A misspelling magnet
The generator records 7 spelling variants around could (IPA /kəd/), averb. Corpus frequency is #92 among 5,599 “C” headwords. Wiktionary lists 7 senses, so context still picks the gloss.
Our generated misspelling index lists 7 likely wrong-spelling variants for could, with forms such as "ccould", "colud", and "coudl". Each of these forms differs from the correct spelling by one small edit: a doubled letter, a dropped silent letter, or a substituted vowel. It also participates in 20 confusable-pair relationships, "cult", "coup", "cull", and more, since the words sound or look close enough that writers reach for the wrong one mid-sentence.
Etymologically, the entry records: From Middle English coude, couthe, cuthe, from Old English cūþe, past indicative and past subjunctive form of cunnan (“to be able”) (compare related cūþ, whence English couth). Cognate with German konnte, Swedish kunde. The -l- in the spelling was added in … The correct English form is could, spelled C-O-U-L-D.
Definition
- 1simple past of can
- 2conditional of can
- 3conditional of can
- 4conditional of can
- 5conditional of can
- 6conditional of can
- 7past participle of can
Recorded use
Wiktionary examplesThese source excerpts show how could appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
Before I was blind, I could see very well.
When I was young everybody could easily find a job in a matter of days.
Etymology
From Middle English coude, couthe, cuthe, from Old English cūþe, past indicative and past subjunctive form of cunnan (“to be able”) (compare related cūþ, whence English couth). Cognate with German konnte, Swedish kunde. The -l- in the spelling was added in the early 16th century by analogy with should and would; this analogy formerly affected the pronunciation as well and was probably assisted by the tendency for /l/ to be lost in those words (and so not written, leading to shudd, wode, etc).
Common misspellings
Also misspelled as:
- ccould
- colud
- coudl
- couldd
- coulld
- cuold
- oculd
Misspelling Pattern Breakdown
How far each generated variant is from the correct spelling of could - measured in single-character edits (insert, delete, or substitute a letter). Larger bars are easier to catch; one-edit slips are the sneakiest.
Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.
Frequently Asked Questions
How do you spell "could"?
What does "could" mean?
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Similar English words by spelling shape
Same letter count and similar misspelling depth for "could", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 5 letters (nearest by frequency rank).
Similar misspelling depth
Headwords with a similar count of attested misspellings (7 here; floor ≥5).
What to do next
You've looked up "could". Here's where to go from here.
- "could" maps to 20 confusable pairs in this vintage; the highest-scored is "cult". View pair
- 7 edit-distance misspelling variants are generated for spell-check research on this headword. See variants
- Usage frequency rank #92 among English headwords in this corpus. Corpus statistics
- Browse more English words in the "C" letter cohort. C–Z browse
- PlainSpell rotates a curated Word of the Day from the English corpus, a passive way to discover vocabulary. Word of the Day
PlainSpell is a reference corpus, not spelling advice. Verify unusual forms in context.
Data Source
Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.