They don't hear good grammar at home, so what they learn in school is never put to use.

Granted, but that's where good grammar and common usage lock horns.

We ought to get out on a pinnacle with a good grammar and practice.

The man spoke haltingly, with good grammar but hesitating sometimes.

But I was glad to know that good grammar is alive and well.

They also should have good grammar and be well-spoken.

There is no such thing as perfect grammar, and I don't always speak good grammar myself.

When these men take pen in hand they write with as good grammar as any.

Yes, in fact, let's eliminate all facets of good grammar because people who can't be bothered to learn them will feel stupid.

Not sure really - I guess that good grammar was drummed into me as a child.