English for Today by Ganiu Abisoye Bamgbose (Dr GAB)
On Basic English
He did it for reasons best known to him (nonstandard).
He did it for reasons best known to himself (standard).
He did it on his own accord (nonstandard).
He did it of his own accord (standard).
He finished the task within the allotted time (nonstandard).
He finished the task in the allotted time (standard).
GAB
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