Assister à vs aider in French: attend or help?

The French verb assister looks like English “assist,” but its everyday meaning changes when it is followed by à.

Quick answer: assister à + event means “to attend” or “to witness.” Aider + person + à + infinitive means “to help someone do something.” French can also use assister + person to mean “assist/support,” but this is generally more formal or specialized than aider.

The three useful patterns

French patternUsual meaningNatural example
assister à + eventattend / be present at / witnessassister à une réunion
aider + person + à + infinitivehelp someone do somethingaider Paul à déménager
assister + personassist or support in a formal/specialized contextassister un patient

Assister à: attend or witness

Use assister à when someone is present at an event, activity or scene:

assister à + event

J’ai assisté à la réunion hier.

I attended the meeting yesterday.

Nous avons assisté à un excellent concert.

We attended an excellent concert.

Elle a assisté à la scène sans intervenir.

She witnessed the scene without intervening.

The preposition is essential. Before a masculine singular noun, à + le contracts to au; before a plural noun, à + les becomes aux:

  • assister au cours — attend the class
  • assister aux conférences — attend the talks
  • assister à la cérémonie — attend the ceremony
Useful nuance: assister à focuses on being present. Participer à usually suggests more active involvement: J’ai assisté à l’atelier says you attended; J’ai participé à l’atelier says you took part.

Aider: help someone do something

Use aider for ordinary help. A person comes directly after the verb, without à:

aider + person + à + infinitive

Tu peux m’aider à porter cette valise ?

Can you help me carry this suitcase?

Nous aidons nos voisins à déménager.

We are helping our neighbours move.

Because the person is a direct object, use le, la, l’ or les—not lui or leur:

J’aide Marie. → Je l’aide.

I help Marie. → I help her.

You can also use aider à + noun for contributing to an action or process:

Cette application aide à la préparation de l’examen.

This app helps with exam preparation.

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When assister quelqu’un is correct

Assister quelqu’un is not automatically wrong. Without à, assister can mean “to assist, support or advise someone.” However, it often sounds more formal, institutional or specialized than everyday aider.

Une infirmière assiste le médecin pendant l’intervention.

A nurse assists the doctor during the procedure.

L’avocate assiste son client.

The lawyer advises and represents her client.

Le patient est assisté par un professionnel.

The patient is supported by a professional.

For ordinary situations—helping a friend cook, move house or understand an exercise—aider is normally the natural choice.

Translating English “attend” and “assist”

One English verb can require several French expressions. Choose the meaning, not the similar-looking word:

English ideaNatural FrenchExample
attend an eventassister àassister à un mariage
attend schoolaller à / fréquenterElle va à l’école à Lyon.
attend to a customers’occuper deJe m’occupe de ce client.
assist a friendaiderJ’aide un ami.
assist with a projectaider à / participer àElle aide à organiser l’évènement.
Two different meanings: J’assiste mon collègue means “I assist/support my colleague,” while J’assiste à la réunion de mon collègue means “I attend my colleague’s meeting.” The preposition changes the structure completely.

Mini practice: attend or help?

Complete each sentence with the correct form of assister à, aider, participer à or s’occuper de.

  1. Demain, je vais ______ une conférence sur le climat.
  2. Peux-tu ______ ton frère à faire ses devoirs ?
  3. Le technicien ______ le chirurgien pendant l’opération.
  4. Nous ne sommes pas seulement venus écouter : nous allons ______ l’atelier.
  5. La vendeuse ______ un autre client pour le moment.
  6. Ils ont ______ une scène étonnante dans la rue.
Check the answers

1. assister à   2. aider   3. assiste   4. participer à   5. s’occupe d’   6. assisté à

Frequently asked questions

Does assister ever mean “to assist”?

Yes. Assister quelqu’un, without à, can mean to support or assist someone, especially in formal, medical, legal or technical contexts. In ordinary conversation, aider is often more natural.

Why do we say je l’aide, not je lui aide?

The person helped is the direct object of aider. Direct-object pronouns are le, la, l’ and les.

What is the difference between assister à and participer à?

Assister à emphasizes being present. Participer à emphasizes taking an active part, although the two can overlap in some situations.

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