Lui vs Le vs La – Him vs Him/It vs Her/It

Use lui as a stress pronoun for emphasis, after prepositions, or to double an indirect object. It can also stand alone in responses.

Use le as a clitic pronoun to replace a masculine direct object noun. It goes before the verb and cannot be separated from it.

Use la as a clitic pronoun to replace a feminine direct object noun. It also goes before the verb and pairs with auxiliary verbs in compound tenses.

Le replaces a direct object; lui replaces an indirect object or follows a preposition. Doubling an indirect object with lui makes the sentence clearer or more emphatic.

Similarly, use la for a feminine direct object and lui for an indirect object or after prepositions. Choose lui when you need emphasis or when the pronoun functions as an indirect object.

In short, use le/la for direct object clitics and lui for indirect objects or after prepositions. Stress pronouns like lui add emphasis or serve as standalone references.