Lorenzo Baglioni, a Tuscan pop star, sings a tune on il congiuntivo (the subjunctive). He remarks that the subjunctive is particularly useful for lovers. Note that the Italian subjunctive, out of context, can have various different solutions in English, and sometimes doesn't correspond at all.

Francesca e Daniela ci spiegano come coniugare il verbo "mangiare" in italiano: prima al presente, poi al passato e anche al futuro, finendo col congiuntivo. Buon divertimento!

Daniela explains what are called "indefinite modes." They are indefinite because they don't refer directly to a person or object. They commonly occur in a subordinate clause, and we need the context of the main clause to give us that information. There are three forms: the infinitive, the past participle, and the gerund.