Learn Italian: In Italia di solito si beve il caffè la mattina. - In Italy, one usually drinks coffee in the morning.

Si beve uses the impersonal si, which is the focus of this lesson! It translates to "one drinks", "people drink", or "you drink" in a general sense. If the sentence just said beve, it would mean a specific "he" or "she" is drinking.

What happens to si beve if the sentence talks about multiple coffees?

When using the impersonal si with a direct object, the verb actually has to agree with that object. Because il caffè is singular, we use the singular verb form si beve. If the object were plural, like i caffè, the verb would change to match it: si bevono i caffè.

Why is "in the morning" translated as just la mattina? Shouldn't it use a word for "in"?

In Italian, when you want to say something happens regularly during a certain part of the day, you usually just use the definite article. So, la mattina naturally means "in the morning" or "mornings". You will also sometimes see di mattina, which means the same thing, but you should avoid using in or nella.

What is the infinitive form of beve?

It comes from the irregular verb bere (to drink). Even though the infinitive ends in -ere, its conjugated forms are built from the old Latin stem bev-. This is why the "he/she/it" form becomes beve.