Words she couldn't bring herself to say trembled on her lips.

Words trembled on her lips, but she forced them back.

The words trembled on her lips as they had so often in the past, but she left them unsaid.

For a second time a smile trembled on his lips with laughter just beneath.

In the mirror she saw the protest tremble on the woman's lips.

It felt dead, and the effort had small, strangled sounds trembling on her lips.

I can see that just trembling on your lips.

He looked around wildly, his son's name trembling on his lips.

I, who have seen the secret trembling on her lips a hundred times, and never suspected it till last night!

He glanced at each of them, a smile trembling on his broad thick lips.