il faut: one must (impersonal form and only exists in 3rd person singular) and somewhat used as a strict general condition: In order to live, one must breathe! Pour vivre, il faut respirer! (one could also say: on doit or vous devez respirer. )
In order to learn vocabulary one must regularly repeat new words. Pour apprendre des vocabulaires, if faut reviser des mots nouveaux.
Vous devez: formal or plural: you must - personal form
for differences between falloir and devoir see this link:
Hi Katz_Katz.
Thank you for the prompt reply.
Your explanation has helped me to understand the meaning of the original French phrase now.
I fear that this is a this is a disadvantage with LingQ in that relying on dictionaries and google translate do not always produce an accurate translation.
I guess i may be worth while to get a French grammar book too!
Thanks Chat_Chat!
Nothing to add. you can use both “il faut” (impersonal) or " Vous devez" (personal form).
We use “Vous devez” either if you are talking to ONE specific person, or if you want to stress the fact that this duty is for YOU and you only.