French phrase
Je crois avoir oublié ~.
Meaning
I think I forgot ___.
When to use it
Indicates that something may have been forgotten. It is a mild, tentative way to mention a forgotten item or task, often before checking or asking for help.
Example dialogue
Je crois avoir oublié mes clés.
I think I forgot my keys.
Tu veux que je t'aide à les chercher ?
Do you want me to help you look for them?