More about saying 'I am, you are...' - the verb 'essere'
Adjectives are listed in the dictionary in their masculine singular form. There are two types: adjectives ending in -o and adjectives ending in -e
carino
nice
felice
happy
The endings change to match the noun. Adjectives ending in have four possible endings:
un ragazzo carino
ragazzi carini
una ragazza carina
ragazze carine
Adjectives ending in -e have only two alternative endings:
un ragazzo felice
ragazzi felici
una ragazza felice
ragazze felici
Note that adjectives, eg describing colour or nationality, nearly always come after the word they describe, unlike in English:
una gonna rossa
a red skirt
un uomo italiano
an Italian man
However, the position of adjectives is quite flexible and some common ones are used before as well as after the noun. In the case of bello and buono this involves some spelling changes.
After the noun bello and buono follow the usual rules for -o adjectives. Before the noun the spelling changes in the same way as the words for 'the'.
un bel palazzo
dei bei palazzi
To say something is 'very...', you can use molto in front of the adjective:
Il risotto è molto buono
The risotto is very good
La città è molto bella
The city is very beautiful
You can also add -issimo or -issima to the adjective:
Il risotto è buonissimo
The risotto is very good
La città è bellissima
The city is very beautiful
You can also add -issimo or -issima to the adjective:
Il risotto è buonissimo
The risotto is very good
La città è bellissima
The city is very beautiful
Note that molto doesn't change when it means 'very', but it does change when it means 'a lot of':