Online corpus resources
Corpora
Corpus of Contemporary American English (COCA)
410 million words (80% written; 20% spoken)
British National Corpus (BNC)
100 million words (90% written; 10% spoken)
1980s-1993
Michigan Corpus of Spoken Academic English (MICASE)
British Academic Spoken English Corpus (BASE)
British Academic Written English Corpus (BAWE)
Google search engines
Print Mar. 3, 2021 of https://awelu.srv.lu.se/grammar-and-words/corpora-resources-for-writer-autonomy/online-corpus-resources/