"You're getting pretty good at that, Data; it's starting to sound natural."

I don't suppose her voice will sound natural to me.

Sadly many people find their speech does not sound natural at the end of therapy.

Janet thought of a dozen things to say, but nothing sounded natural.

"She had asked me a question," Gen started, but his voice didn't sound natural and so he decided to forget it.

It must be made to sound natural, and logical as well.

So "there have always been a couple" would sound more natural.

What else can I do, when you make it sound so natural?

Its total volume is too small for music to sound natural.

Yet not a line of dialogue sounds natural or true.