English for Today by Ganiu Abisoye Bamgbose (Dr GAB)
He’s a man of timber and calibre (nonstandard).
He’s a man of dignity and integrity (standard).
I’ll come early in case of incasity (nonstandard).
I’ll come early in case of necessity (standard).
I will come if I am opportuned (nonstandard).
I’ll come if I have the opportune moment (standard
I know he’s a 419 (nonstandard).
I know he’s a fraudster (standard).
Note that the standard forms expressed in this lesson are not the only ways to express the ideas embedded in the nonstandard expressions.
GAB

Good sir!