No but you can call them and ask them if they are coming but you should demand an "for sure" RSVP.
If you are single it is assumed that you may bring a guest, unless the invitiation explicitly states otherwise.
guest................
A guest.
A guest is someone who has been invited to a program. So in my knowledge, it will be inappropriate to say or use "invited guest". Thanks
It is customary to RSVP (respondez s'il vous plait), meaning that you should call, drop a message or note, that you are confirming the planned luncheon.
In the context of social invitations RSVP is a request for a response from the invited person. It is an initialism from the French phrase "répondez s'il vous plait", meaning "please respond".
i have a military id card can i bring a guest into the commissary
that would be very helpful to the person (name cards) who is in charge of the seating arrangement.
Guest.
(Literally: 'invited male') Guest.
Paying and non-paying. Invited and uninvited