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-1993Michigan Corpus of Spoken Academic English (MICASE)British Academic Spoken English Corpus (BASE)British Academic Written English Corpus (BAWE)
1980s-1993Michigan Corpus of Spoken Academic English (MICASE)British Academic Spoken English Corpus (BASE)British Academic Written English Corpus (BAWE)