Base difficulty: Level 1399 edit
Level distribution for adverb (relative_time): 6: 3 9: 3 22: 5 225: 9 1030: 1 1399: 4
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Tier Signals
| Source | Tier | Rank used |
|---|---|---|
cefr |
B2 (4 of 6) | 6900 |
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 |
9.28 | 5861 | 80% | 7326 downrated | 1 |
20th_books |
7.74 | 6423 | 80% | 8029 downrated | 1 |
wiki_math |
82.92 | 1209 | 80% | 1511 downrated | 1 |
wiki_geography |
135.20 | 779 | 80% | 974 downrated | 1 |
wiki_biology |
132.65 | 823 | 80% | 1029 downrated | 1 |
wiki_modern_life |
162.81 | 628 | 80% | 785 downrated | 1 |
wiki_arts |
246.91 | 355 | 80% | 444 downrated | 1 |
wiki_society |
136.17 | 770 | 80% | 962 downrated | 1 |
wiki_linguistics |
210.13 | 509 | 80% | 636 downrated | 1 |
wiki_physical_science |
96.15 | 1224 | 80% | 1530 downrated | 1 |
wiki_history |
109.84 | 967 | 80% | 1209 downrated | 1 |
early_modern_science |
49.79 | 1833 | 80% | 2291 downrated | 1 |
religious_translated |
20.88 | 3306 | 80% | 4132 downrated | 1 |
cooking |
0.00 | — | — | — | 0 |
legal_scotus |
37.07 | 2497 | 80% | 3121 downrated | 1 |
eu_parliament_debates |
21.58 | 3149 | 80% | 3936 downrated | 1 |
openstax_science |
41.53 | 2487 | 80% | 3109 downrated | 1 |
openstax_society |
57.49 | 1920 | 80% | 2400 downrated | 1 |
wpa_life_histories |
13.54 | 4122 | 80% | 5152 downrated | 1 |
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.