1. COCA. The Corpus of Contemporary American English . 1990–2019, version 2020 . Compiled by Mark Davies . < https://www.english-corpora.org/coca/ >. Over a billion words .
2. COHA. Corpus of Historical American English . 1820–2019, version 2021 . Compiled by Mark Davies . < https://www.english-corpora.org/coha/ >. c.400 million words .
3. EEBO. Early English Books Online . 1470s to 1690s . Online corpus created as part of the SAMUELS PROJECT (2014–2016) . c.755 million words .
4. TIME. Time Magazine Corpus . 2007– . Compiled by Mark Davies . < https://www.english-corpora.org/time/ >. c.100 million words .