French phrase
Que dois-je faire si on ne peut pas ~ ?
Meaning
What should I do if I am unable to ___?
When to use it
Asks what to do when something cannot be done. Polite and formal, often used when discussing procedures or permissions.
Example dialogue
On m'a dit que je risquais de ne pas obtenir mon visa.
I was told that I might not be able to obtain my visa.
Que dois-je faire si on ne peut pas obtenir un visa ?
What should I do if I am unable to obtain a visa?