What happens when we have to replace both the pronouns?

0) In order to replace both, you must use the implicit forms, that must be put both before the verb.

0) You must put before the implicit form of the complement pronoun introduced by the preposition “A” (mi, ti, gli, le, ci, vi, loro)

0) You must put after the implicit form of the complement pronoun that goes alone (mi, ti, lo, la, ci, vi, li, le)

BE CAREFUL!

Don’t forget that, while replacing both the pronouns, something happens to the pronouns put before!!!

Mi, ti, ci, vi followed by the pronouns lo, la, li, le become me, te, ce, ve
Example:

0) Francesco dice a me la notizia (= lei) → Francesco me la dice (Francesco tells me the news → Francesco tells it to me)

0) Io racconto a te il mio segreto (= lui) → Io te lo racconto (I tell you my secret → I tell it to you)

0) Mio fratello dà a me e ai miei genitori (= a noi) dei regali (= loro) → Mio fratello ce li dà (My brother gives me and my parents some gifts → My brother gives them to us)

0) Io do a te e a tua sorella (= a voi) le mie borse (= loro) → Io ve le do (I give you and your sister my bags → I give them to you)

Gli, le followed by the pronouns lo, la, li, le become a whole word with these last ones (joined by a “e“): glielo, gliela, glieli, gliele → used for both men and women! (also “le” becomes “gli”…)
Examples:

0) Paola regala l’orologio (= lui) al suo fidanzato (= a lui) → Paola glielo regala (Paola gives a watch to her boyfriend → Paola gives it to him)

0) Federico compra dei fiori (= loro) alla sua fidanzata (= a lei) → Federico glieli compra (Federico buys some flowers for his girlfriend → Federico buys them for her)

Loro, instead, doesn’t change! We always put it after the verb, while the other pronoun is put before the verb
0) Roberta regala a loro le sue scarpe (= loro) → Roberta le regala loro ! (Roberta gives them her shoes → Roberta gives them to them)

Now,