Base Difficulty

Base difficulty: Level 7 edit

Level distribution for verb (possession): 3: 3 7: 2 10: 1 20: 3 175: 14 254: 1 309: 1 314: 1 360: 1 406: 1 415: 3 455: 1 475: 3 1070: 1 1205: 1 1399: 28

Per-Language Difficulty Overrides

No difficulty overrides set. The base difficulty level will be used for all languages.

Add Difficulty Override
-1 to exclude, 1-1399 for level
Frequency and Tier Signals
Combined Frequency Rank: 788 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
cambridge_yle Flyers (3 of 3) 1200
cefr A1 (1 of 6) 800

Rank used = synthetic rank this tier contributes to the combined frequency rank (lower = more common).

Corpus Frequency
Corpus Freq (per M) Best form Share Zipf rank Forms
19th_books 121.31 1743 100% 729 3
20th_books 98.02 2019 100% 853 3
wiki_math 0.00 — — — 0
wiki_geography 59.65 2347 100% 2347 1
wiki_biology 157.67 863 100% 863 1
wiki_modern_life 342.65 496 100% 371 3
wiki_arts 301.96 619 100% 432 3
wiki_society 248.65 1433 100% 566 3
wiki_linguistics 0.00 — — — 0
wiki_physical_science 39.91 3241 100% 3241 1
wiki_history 225.17 909 100% 587 3
early_modern_science 39.11 2763 100% 2763 1
religious_translated 62.33 2628 100% 1444 2
cooking 100.29 1149 100% 1149 1
legal_scotus 143.09 2238 100% 762 4
eu_parliament_debates 74.37 3059 100% 1099 3
openstax_science 0.00 — — — 0
openstax_society 402.21 867 100% 347 4
wpa_life_histories 592.91 375 100% 182 4

Best form = the single best-ranked form in the corpus, share-blind — how the spelling itself ranked. Share = how much of that spelling belongs to this lemma, when several senses compete for it. Zipf rank = all the forms combined (variant spellings included), each scaled by its share, and what feeds the combined frequency rank. Combining forms improves on the best form, but a share below 100% pushes the other way and usually wins: a sense holding a small slice of a common spelling is a rare word, so its rank lands downrated below the best form — and once it falls past what the corpus can support it is capped at the rank an unlisted word would get.