tu non devi

you must not

→ tu
phrase Uncommon #13,117
you must not Used to tell someone not to do something. Depending on context, “non devi” can also mean “you don't have to”; the explicit subject tu adds emphasis.
IT: Tu non devi preoccuparti per me.
EN: You must not worry about me.

Tu non devi aspettare con me.

You don't have to wait with me.

Tu non devi dire nulla.

You mustn't say anything.

Tu non devi mangiare.

You mustn't eat.

Ma tu non devi vedere niente, devi solo andartene.

But you don't have to see anything, you just have to leave.

— Per un pugno di dollari (1964)

Tu non devi chiamarmi.

You don't have to call me.

Tu non devi farlo.

You mustn't do it.

Tu non devi pensare a niente!

You don't have to think about anything!

— Per un pugno di dollari (1964)

Perchè almeno tu non devi tenerti la prova sotto il maglione.

Because at least you don't have to keep the evidence under your sweater.

— Juno (2007)

Tu non devi dire in giro che io ti telefono.

You mustn't tell people that I call you.

— Indagine su un cittadino al di sopra di ogni sospetto (1970)

Tu non devi lavorare domani?

Don't you have to work tomorrow?

Tu non devi baciarmi.

You must not kiss me.

Tu non devi dirlo a nessuno.

You mustn't tell anyone.

Tu non devi parlare.

You must not speak.

Tu non devi fumare.

You must not smoke.

Senti, tu non devi fare niente.

Listen, you don't have to do anything.

— Conclave (2024)

Tu non devi sapere niente.

You don't have to know anything.

— 8½ (1963)