Double pronouns

A verb can be preceded by two pronouns, one for "complemento di termine" (who to/for?) and one for "complemento oggetto" (direct object - what?). Examples:

"Me lo disse Tommaso" ( Tommaso told it to me)
"Ve li manderò per posta" ( I'll send them to you pl. by mail )

"Gli" ( to him/her/them) combines with "lo, la, li, le" obtaining "glielo, gliela, glieli, gliele".

"La lettera di Cristina gliela consegnerò domani" ( Cristina's letter - I'll deliver it to her tomorrow)
"Glielo diciamo sempre di stare più attento" ( We always tell him to be more careful)

Notice that:
a) It. syntax allows inversions and displacements that are not acceptable in Eng.;
b) the list of pronouns for "complemento di termine" used in these combinations - "me, te, glie-, ce, ve, glie-" - is slightly different from the lists that were given in the page on personal pronouns
c) the number and gender of the referent of "glie-" may be revealed by other elements in the sentence. See the following examples:

"Glielo diciamo sempre di stare più attento" - the adjective is m. sng., so "we tell him"
"Glielo diciamo sempre di stare più attenta" the adjective is f. sng., so "we tell her"
"Glielo diciamo sempre di stare più attenti" the adjective is m. pl., so "we tell them (m.)"
"Glielo diciamo sempre di stare più attente" the adjective is f. pl., so "we tell them (f.)"