English for Today by Ganiu Abisoye Bamgbose (Dr GAB)
SERIES ON PREPOSITIONAL ERRORS
You shouldn’t blame her because I did it ~on~ my own accord (nonstandard).
You shouldn’t blame her because I did it of my own accord (standard).
He was ~on~ a green shirt this morning (nonstandard).
He was in a green shirt (standard). Note that you can put on a green shirt but you are in what what you wear.
Fold the paper ~into~ two (nonstandard).
Fold the paper in two (standard).
GAB