¢σ∂ єт ¢σι

COD - Complemento Directo.
COI - Complemento Indirecto.

COD

                                                                                                          me
                                                                                                           te
                                                                                                       le/la
                                                                                                        nous
                                                                                                        vous
                                                                                                          les

                                Exemple:
  Pierre connaît Michel.  -  Pierre le connaît.

COI

                                                                                                          me
                                                                                                           te
                                                                                                          lui
                                                                                                         nous
                                                                                                         vous
                                                                                                         leurs

                                  Exemple:
Pierre téléphone  à Michel. - Pierre lui téléphone.

Atenção:

Quando um pronome acaba com vogal e o verbo asseguir também começa com vogal ou h, coloca-se um apostrofo á frente:

ma - m'
te - t'
le/la - l'
lui - l'

Exemple: Les Français l'ont organisé.