Stop biting your nails.
Her nails are red.
I can't cut my nails and do the ironing at the same time!
She has a habit of biting her nails.
You must get rid of the habit of biting your nails.
You're usually as tough as nails.
I never cut my nails at night.
A magnet can pick up and hold many nails at a time.
Plato having defined man to be a two-legged animal without feathers, Diogenes plucked a cock and brought it into the Academy, and said, "This is Plato’s man." On which account this addition was made to the definition,—"With broad flat nails."
I was biting my nails, worrying about you.
Polish nails are more expensive than the Chinese ones.
Where did you get your nails done?
He managed to cure himself of his habit of nibbling his nails.
He hammered nails into the plank.
Nail polish is useless: no one looks at nails anyway.