Ciao! see here http://www.uvm.edu/~cmazzoni/3grammatica/grammatica/comparatives.html comparatives and superlatives (i comparativi e i superlativi) I. IL COMPARATIVO: There are three comparatives: di maggioranza (majority), di minoranza (minority), di uguaglianza (equality) comparativo di maggioranza più...di più...che comparativo di minoranza meno...di meno...che you use "DI": 1.when two terms are compared with respect to one quality/action 2.in front of numbers you use "CHE" 3.when there is one term and two qualities/actions refer to this one term 4.in front of a preposition 5.in front of an infinitive comparativo di uguaglianza a. (così)...come or (tanto)...quanto (for adjective and adverbs: "così...come" and "tanto...quanto" are adverbs and there is no agreement) b. (tanto)...quanto (for nouns: here "tanto...quanto" are adjectives and there is agreement) c. (tanto) quanto... (for verbs: "(tanto)...quanto" are adverbs and there is no agreement) così and tanto are optional and usually avoided II. IL SUPERLATIVO RELATIVO This is one of the easiest grammatical points in Italian ("uno dei punti grammaticali più facili dell'italiano"). The relative superlative is formed by: the definite article (il, la, i , le) + (noun) + più/meno + adjective + di + the term in relation to which we are comparing (it is like English, really, except that in Italian you use "di" instead of "in")