French phrase
Sur quoi devrais-je ~ ?
Meaning
What should I base ___ on?
When to use it
Asks what should be used as the basis for a decision. Used when weighing opinions or sources; usually neutral in tone.
Example dialogue
Sur quoi devrais-je me baser ?
What should I base my decision on?
Base-toi sur les faits et les conseils d'experts.
Base your decision on the facts and expert advice.