doesn’t have to worry
You don't need to worry.
You don't need to worry about me.
He/She must not worry.
Non deve preoccuparsi per Tom.
You don't need to worry about Tom.
Tom non deve preoccuparsi di niente.
Tom doesn't have to worry about anything.
Non deve preoccuparsi, risolveremo tutto noi al più presto.
Don't worry, we'll sort everything out as soon as possible.