French phrase
Je n'ai pas tenu ma promesse, je suis désolé.
Meaning
I didn't keep my promise, I'm sorry.
When to use it
An apology for failing to keep a promise. It suits personal or informal situations.
Example dialogue
Tu as raconté mon secret à Léo ?
Did you tell Leo my secret?
Je n'ai pas tenu ma promesse, je suis désolé.
I didn't keep my promise, I'm sorry.