How do you say did I something in french?

There are a few ways to say "Did I something" in French, depending on the context and the specific action:

1. "Est-ce que j'ai..."

This is the most common and neutral way to ask if you did something. It translates directly to "Did I..." and can be used for most actions.

Examples:

* Est-ce que j'ai mangé ? (Did I eat?)

* Est-ce que j'ai fini mon travail ? (Did I finish my work?)

* Est-ce que j'ai dit ça ? (Did I say that?)

2. "Ai-je..."

This is a more formal way to ask the question, and is often used in writing or more formal speech. It translates to "Did I...".

Examples:

* Ai-je bien compris ? (Did I understand correctly?)

* Ai-je oublié quelque chose ? (Did I forget something?)

* Ai-je commis une erreur ? (Did I make a mistake?)

3. "J'ai fait..."

This is used to ask if you specifically *did* something.

Example:

* J'ai fait ça ? (Did I do that?)

4. "J'ai..." + verb in past participle

This construction emphasizes the action you took.

Example:

* J'ai mangé des frites ? (Did I eat fries?)

Remember to choose the phrase that best fits the context of your conversation.