Here’s another challenge for you. What happens if you look for the term on the one hand by comparing the Spoken sections in BYU-COCA with each of the other 4 sections – Fiction, Magazine, Newspaper, Academic.
1. What do you predict given you know that on the one hand is often associated with explanations?
Now do the same with on the other hand.
The above query came about because I noticed that in speaking people tended to use both pairs of on the one hand & on the other hand whereas by contrast in written online texts I noticed only the second part of pair i.e. on the other hand being used.
See comments below.
BYU-COCA Corpus Query – Prepositions of place [http://blog.englishup.me/2016/03/30/byu-coca-corpus-query-prepostions-of-place/]
BYU Corpora Digs 1 – Rock up [http://blog.englishup.me/2016/08/29/byu-corpora-digs-1-rock-up/]