de roer as unhas

to bite one's nails

→ de
phrase Rare #34,250
to bite one's nails Usually refers to a habit, often associated with nervousness or anxiety. The phrase is commonly used after expressions such as “ter o hábito de” or “parar de.”
PO: Ela está tentando parar de roer as unhas.
EN: She is trying to stop biting her nails.

Para de roer as unhas.

Stop biting your nails.

Pare de roer as unhas.

Stop biting your nails.

— Rebecca, A Mulher Inesquecível (1940)

Ela tem o costume de roer as unhas.

She has a habit of biting her nails.

Você precisa se livrar do hábito de roer as unhas.

You need to break the habit of biting your nails.

Vamos, pare de roer as unhas.

Come on, stop biting your nails.

— As Diabólicas (1955)

Eu tenho o mau hábito de roer as unhas.

I have a bad habit of biting my nails.