Avverbi

The main function of adverbs is to modify the meaning of a verb. The most typical way to form Italian adverbs is by adding the suffix -mente to an adjective. For adjectives of the first group (-o, -a type) the suffix is added to the feminine form (antico, antica > anticamente). For adjectives of the second group (-e type) the suffix is added to the singular form (breve > brevemente), but with adjectives ending in -le and -re, the final -e is dropped first (difficile > difficilmente).

Some examples:
Veramente non lo so! - Actually I don't know!
Imparo facilmente - I learn easily
Sbagliate regolarmente - You make mistakes regularly

Some of the most commonly used adjectives (e.g. molto, tanto, troppo, tutto, poco) can be also used as adverbs, and in this case they are invariable and identical to the masculine singular form.
Lavoro troppo - I work too much
Mangiamo poco - We eat little
Leggete molto - You read a lot

Certain adverbs are normally used to modify not only verbs, but also adjectives and other adverbs:
La mia vita รจ molto tranquilla - My life is very quiet
Vivo molto tranquillamente - I live very quietly
Parli troppo velocemente e io capisco molto poco - You speak too quickly and I understand very little