Think about this and you can figure it out. An idiom seems to mean one thing but actually means another. Does "with regard" mean just what it seems to? Yes, it does. Therefore, this phrase is not an idiomatic expression.
an idiomatic expression
idiomatic expression
"Turn a deaf ear" is an idiomatic expression meaning to ignore or pay no attention to something.
Idiomatic expression
humbly
"You" is not an idiom. It is a pronoun.
Jasjs
Give me 1 example of idiomatic expression
This expression means real and simple.
yes it is
to support
Cockney-stink