How do you write Italian in French?

You can't directly "write Italian in French". French and Italian are different languages with distinct alphabets and grammatical structures.

However, you can translate Italian words and phrases into French.

For example:

* Ciao (Italian) becomes Ciao (French)

* Buongiorno (Italian) becomes Bonjour (French)

* Grazie (Italian) becomes Merci (French)

You can also use French words to describe Italian things:

* Le cinéma italien (Italian cinema)

* La cuisine italienne (Italian cuisine)

* La langue italienne (the Italian language)

It's important to remember that even when using French words, you are still talking about Italian things.