Je lui parle. - I'm talking to him.
Il t'aime. - He loves you.
Nous le faisions. - We were making it.
Je lui ai parlé. - I talked to him.
Il t'aurait aimé. - He would have loved you.
Nous l'avons fait. - We made it.
Je dois lui parler. - I have to talk to him.
Il peut t'aimer. - He can love you.
Nous détestons le faire. - We hate making it.
*Except the affirmative imperative
Fais-le. - Make it.
Aime-moi. - Love me.
Use these links to learn all about object, adverbial, and reflexive pronouns, including how to use them and correct word order.