Překlad - Italsky-Německy - Non sapete far altro che parlare e parlare, ma...

- Persona sbagliata, significato e forma trascurati, solo l'iniziale, maiuscola, non c'è il punto alla fine

Tranquillamente rifiutabile, per me

Der Sinn ist zwar da, aber ein bißchen vereinfacht. Man könnte vielleicht sagen «... und machen am Ende kaum eine Sch****». Der Anfang könnte aus das Konzept von "können" irgendwie beinhalten.

Sah, ma sei sicura di sapere il tedesco?

Il n'y a pas de problème avec son allemand.

"sapete" si you, you plural, Sie is not you plural, you plural is "Ihr"

Sei sicura di sapere il tedesco?

"Sie" is also you plural (formal). "Ihr" is you plural informal.

This is now incorrect. It should either be "Sie reden nur und machen ..." or "Ihr redet nur und macht ..."

In the Italian text there is "voi", that can only be second plural person. In Italian there is no formal "voi", the formal pronoun is only Lei (3rd sing. fem.) and Loro (3rd plur.)

Can "lei" mean "you"? If so, it's 2nd person when it does. For example, in Mexican Spanish, "su" can be 2nd person or 3rd person possessive - that's why many Mexican ESL students mix up "his", "her", and "your".

Anyway, the German is now correct for 2nd person plural informal.

Nava...come off it will you. jaysus you've been nagging so much about every translation that u requested why don't you translate them yourself if you're so good at it

2nd pers. pl. informal is OK.
Italian speaking people (even less educated people) never mix up 2nd and 3rd person (tuo-suo, (vostro-loro).
The plural formal (3rd pers pl.) is becoming less and less used, and is often substituted with a 2nd plural meant as a mix between an impersonal form and a familiar form, but it is never meant as a singular.
In ancient Italian (and some regional Italian) there was/is somewhere the use of a formal Voi, (addressed to 1 person) but different uses are never mixed up.

Thanks for the Italian lesson, apple - I really should learn your language - it's about time, don't you think?

I should clarify - I meant that Mexican Spanish sometimes confuse "his", "her", and "their" in ENGLISH - they never get mixed up in their own language!