He tried to say the name, but his voice failed him.

He tried to call again but his voice failed him.

She knew all too well what was wrong and her voice failed.

He wanted to say more, but his voice failed him.

He had to pause a moment to make sure his voice wouldn't fail him.

His voice failed him a little, and the stare continued.

She sensed intelligence and tried to say something, but her voice failed.

He wanted to say something in reply but his voice failed him.

I could not reply at the moment, for my voice failed me.

She tried to cry out for help, but her voice failed.