
Penser à vs Penser de
The French expressions penser à and penser de can both be translated using the English verb to think, but they are not interchangeable.
The difference is the kind of thought you want to express:
- Penser à means to think about someone or something, or to have something on your mind.
- Penser de is used when asking or expressing what you think of someone or something—in other words, your opinion.
Compare:
- Je pense à ce film. — I’m thinking about that movie.
- Que penses-tu de ce film ? — What do you think of that movie?
The preposition changes the meaning, so it’s important to learn these two expressions separately.
In this lesson, you’ll see when to use penser à and penser de, with examples and a simple way to remember the difference.
You can download a PDF of this lesson guide in my private French Grammar Library.
If you’d like to review other common uses of these two prepositions, take a look at my lesson on French prepositions À and DE.
1. Penser à – To Think About Someone or Something
Use penser à when talking about a person, thing, or idea that is on your mind. It can mean to think about, think of, or have someone or something in mind.
Penser à + a person
- Je pense à toi. — I’m thinking of you.
- Elle pense souvent à ses enfants. — She often thinks about her children.
- Tu penses à moi ? — Are you thinking about me?
- Nous pensons à nos amis qui habitent à l’étranger. — We’re thinking about our friends who live abroad.
Penser à + a thing
- Je pense à mes vacances. — I’m thinking about my vacation.
- Il pense à son avenir. — He’s thinking about his future.
- Nous pensons à notre prochain voyage. — We’re thinking about our next trip.
- Tu penses à fermer la porte ? — Are you remembering to close the door?
Notice that penser à can also be used before an infinitive:
- Je pense à appeler Marie. — I’m thinking about calling Marie.
- N’oublie pas de penser à acheter du pain. — Don’t forget to think about buying bread.
Remember: Penser à is about the person, thing, or action occupying your thoughts. It does not ask for an opinion.
2. Penser de – To Have an Opinion About Something
Use penser de when asking or expressing an opinion or judgment about someone or something.
It is especially common in questions:
- Qu’est-ce que tu penses de ce film ? — What do you think of this movie?
- Que penses-tu de cette idée ? — What do you think of this idea?
- Que pensez-vous de cette ville ? — What do you think of this city?
- Qu’est-ce qu’elle pense de son nouveau travail ? — What does she think of her new job?
You can also use penser de to express an opinion:
- Je ne pense pas grand-chose de son idée. — I don’t think much of his idea.
- Que penser de cette décision ? — What should we think of this decision?
Remember: Penser de is about someone’s opinion or judgment. When you want to ask what someone thinks of something, use penser de, not penser à.
3. Penser à vs Penser de: What’s the Difference?
| Expression | Meaning | Example |
|---|---|---|
| penser à quelqu’un | to think about someone | Je pense à toi. |
| penser à quelque chose | to think about something | Je pense à mes vacances. |
| penser à faire quelque chose | to think about / remember to do something | Je pense à fermer la porte. |
| penser de quelque chose | to have an opinion about something | Que penses-tu de ce film ? |
The easiest way to remember the difference:
- Penser à: What’s on your mind?
- Penser de: What’s your opinion?
4. Penser à and Penser de with Y and EN
When penser à or penser de is followed by a thing, you can often replace that thing with the pronoun Y or EN.
Y replaces à + a thing:
- Elle pense à son voyage. — She’s thinking about her trip.
- Elle y pense. — She’s thinking about it.
EN replaces de + a thing:
- Que penses-tu de cette idée ? — What do you think of this idea?
- Qu’en penses-tu ? — What do you think of it?
Remember that Y and EN do not replace people in these constructions. When referring to a person after penser à, use a stressed pronoun:
- Je pense à Paul. — Je pense à lui.
- Elle pense à ses parents. — Elle pense à eux.
For a more detailed explanation, including additional examples with Y and EN, see my lesson on penser à vs penser de and the pronouns Y and EN.



