French object pronouns: COD, COI, y and en explained

Start with the complete French phrase and ask what the verb takes. Voir quelqu’un has a direct object, while parler à quelqu’un has an indirect complement. The same person can therefore become la after voir and lui after parler à. English prepositions do not reliably predict French constructions, so learn the verb and its complement together.

Do not replace the subject by an object pronoun. In Léa me voit, Léa does the seeing and me receives it. To replace Léa as subject, use elle: elle me voit. The labels COD and COI describe a complement’s role in the construction; they do not label a person permanently.

The COD pronouns are me, te, le, la, nous, vous, les. Use le for a masculine singular known object or person, la for feminine singular and les for plural of either gender. Before a vowel or mute h, me, te, le and la elide to m’, t’, l’. The subject and object can have different persons and genders.

A known definite set uses les: les billets → je les ai. An unspecified quantity uses en: trois billets → j’en ai trois. Do not choose les merely because a noun is plural. French also treats écouter quelqu’un and attendre quelqu’un as direct constructions, even though English may suggest “listen to” or “wait for”.

Use lui for one person and leur for several with constructions such as parler à, écrire à, téléphoner à and donner quelque chose à quelqu’un. These pronouns do not distinguish gender: je lui parle can mean “I speak to him” or “I speak to her”. For first and second persons, the indirect forms are me, te, nous, vous.

Not every à + person becomes lui or leur. Some verbs keep a stressed pronoun after the preposition: je pense à Léa → je pense à elle, je tiens à mes amis → je tiens à eux. Learn these as verb patterns. Also keep indirect object leur separate from possessive leur/leurs: je leur parle de leurs projets. Only the possessive can take a plural s.

Use y for a known place or a suitable à + thing complement. A place can have been introduced by à, dans, chez or another location expression: dans ce bureau → j’y travaille. With penser à un problème, y replaces the idea. For a place of origin introduced by de, use en instead.

A pronoun needs a recoverable reference. If several places have been mentioned, repeat the place name when y would be unclear. In il y a, the y belongs to a fixed expression meaning “there is/are”; do not try to replace an individual place mechanically every time you see it. Practise free replacement first with aller, habiter and travailler.

Use en for an unspecified amount, an expressed quantity or a suitable de complement. Replace the noun phrase but keep the number or quantity expression: j’ai deux pommes → j’en ai deux. With du pain, the partitive amount becomes en without an added number. With parler de ce problème, en represents the topic.

Use un/une after en when you mean one: j’en ai une can refer to one apple. The noun disappears, but its gender may remain visible in that number. For a person after de, a stressed form such as de lui or d’elle often makes the reference explicit; check the verb’s construction rather than translating en word for word.

In an ordinary statement, put the pronoun before its verb: before the conjugated verb in a simple tense, before the auxiliary in a compound tense, or before the infinitive that takes the complement. With a modal or aller + infinitive, this last distinction matters: je vais le voir, because seeing takes the direct object.

In this example, ne…pas surrounds vais, while lui stays before téléphoner. In an inverted question, the pronoun remains before the auxiliary: l’avez-vous vu ? Identify which verb takes the object before moving anything. Later constructions such as faire + infinitive have additional patterns; establish these common ones first.

Before the verb, the main order is me/te/se/nous/vous → le/la/les → lui/leur → y → en. Choose the pronouns first, then use their positions in that sequence. This describes the order of combinations that the construction allows; it does not mean that any two forms can be combined freely.

Affirmative commands put pronouns after the verb with hyphens: donne-le-moi, donnez-lui-en. Me and te normally become moi and toi, with elided forms before en or y in patterns such as donne-m’en. In compound tenses with avoir, a preceding COD can cause participle agreement: les lettres, je les ai écrites. An indirect leur does not: je leur ai écrit.

The main errors come from English verb patterns, lost quantities and pronoun placement around infinitives. Reconstruct the full French phrase when unsure; it shows both the complement type and the verb that takes it.

• Je lui vois.Je le vois.

  Voir takes a direct object; this masculine singular reference uses le.

• Je les téléphone.Je leur téléphone.

  Téléphoner à someone takes an indirect person complement.

• Je pense à Léa. Je lui pense.Je pense à Léa. Je pense à elle.

  Penser à a person keeps a stressed pronoun after à.

• J’ai trois billets. J’en ai.J’ai trois billets. J’en ai trois.

  Keep the stated number when replacing the noun with en.

• Je le veux voir.Je veux le voir.

  The object belongs to voir, so le goes before that infinitive.