не беспокоиться

not to worry

→ не
phrase Very common #1,255
not to worry Often used with за + accusative to mean not to worry about someone or something. The infinitive form is commonly used after verbs such as постараться.
RU: Постарайся за меня не беспокоиться.
EN: Try not to worry about me.

Том может обо мне не беспокоиться.

Tom doesn't have to worry about me.

Об этом можешь не беспокоиться.

You don't have to worry about that.

— Служанка (2016)

Можешь не беспокоиться.

You don't have to worry.

— Оппенгеймер (2023)

Том сказал нам не беспокоиться.

Tom told us not to worry.

Она не могла не беспокоиться за него.

She couldn't help worrying about him.

Том сказал Мэри не беспокоиться об этом.

Tom told Mary not to worry about it.