Dash vs. no dash

Question

Hi, the options “assoyez-vous” & “asseyez-vous” have hyphens, but the two instances of “veuillez vous asseoir” do not have one between “veuillez” & “vous”. It looks like these are all “short reversed-form questions”, so is there a reason for this difference?

Accepted Answer

Bonjour Brian,
That's an excellent question! 
There is no hyphen between 'veuillez' and 'vous' because 'vous' is linked to the reflexive verb s'asseoir -> m' / t'... / vous asseoir (object pronoun)
Voulez-vous vous asseoir ? = do you want to sit down? 
Veux-tu t'asseoir ? = do you want to sit down?
Veuillez vous asseoir = please sit down 
Asseyez-vous = sit down
Assieds-toi = sit down
I hope this is helpful.
Bonne journée !

Answer

Ahhh, I see. Thanks for your answer Céline, it’s very helpful.