If you have ever written a French sentence and paused over one small word, you already know the pain. English leans on “to” for almost everything, but French splits that job between two little prepositions, à and de. Pick the wrong one and a patient listener still understands you, but it marks you as a learner every time. The good news is that once you see the patterns behind à and de, you can choose correctly without memorizing a single list. Here is how.
The verb does the choosing
In the trickiest cases, à or de sits between a verb and an infinitive, and the first verb simply prefers one over the other. English says “I started to read” and “I decided to read”, both with “to”. French treats them differently: commencer à lire, but décider de lire. There is no deep logic to it. Each verb comes with its own little partner, so the practical move is to learn them as a pair rather than as two separate words.
- Verbs that take à: commencer à (to start), apprendre à (to learn to), réussir à (to succeed in), penser à (to think about)
- Verbs that take de: décider de (to decide), essayer de (to try), oublier de (to forget), arrêter de (to stop), rêver de (to dream of)
- Verbs that take nothing: vouloir (to want), pouvoir (to be able to), devoir (to have to), aimer (to like)
à points forward, de points back
Away from the verb and infinitive pattern, à and de behave more predictably. Think of à as pointing toward something: the place you are going, the person you are talking to, or the purpose of an object. Je vais à Paris, je parle à Marie. Think of de as pointing back to a source: where you came from, what something is made of, or who owns it. Je viens de Paris, le livre de Marie. One pairing shows the difference perfectly: une tasse à café is the cup meant for coffee, while une tasse de café is the cup with coffee in it.
Two verbs where the meaning changes
A handful of verbs actually change meaning depending on whether you follow them with à or de, and these are worth learning on purpose. Penser à means to think about someone or something, to have your mind on it: Je pense à mes vacances. Penser de means to have an opinion: Que penses-tu de ce film ? (What do you think of this movie?). The same shift appears with parler à (to talk to someone) and parler de (to talk about something). When the preposition changes the meaning, slow down and treat it as new vocabulary.
Pick it up from real reading
You do not need a chart to master this. The fastest way is to notice these pairs every time you read French, and reading news at your level is perfect for it. A short article here on frenchnews.online is full of real examples: commencer à, décider de, réussir à, all sitting inside ordinary sentences instead of grammar drills. When you spot one, underline it mentally and say the whole pair out loud. After a week of paying attention, commencer à and décider de will sound obviously right, and the wrong version will start to sound wrong. That is when à and de stop being a problem and become a habit.