In this case it actually doesn't matter that one of the nouns is a collective noun. Since the question inquires about more than one person, the correct verb form would be "are."
Other similar examples:
Are your brother and sister coming to dinner?
Are your neighbor and his children coming to dinner?
Are your coach and soccer team coming to dinner?
A handy way to test for correct grammar is to turn the question into a statement:
Your family and best friend are coming to dinner.
[and not]
Your family and best friend is coming to dinner. (wrong!)
Another useful test is to use a pronoun to reduce the sentence to its simplest form:
Are they coming to dinner?
[and not]
Is they coming to dinner? (wrong!)
Yes, family is used as a collective noun, for example a family of five, a family of actors, a family of gophers, etc.
There are no collective nouns in the sentence. The noun 'family' can be used as a collective noun (a family of artists or a family of gophers), but in this sentence it is not.
Family
No, grandparents is a common plural noun. Appropriate collective nouns might be family or clan. Grandparents are members of a family or clan.
Culture is ordinary and cultural materialism. He also influence Edward Said.
Family - 2008 Guess Who's Coming to Dinner Part 1 1-11 was released on: USA: 5 April 2009
Yes, family is used as a collective noun, for example a family of five, a family of actors, a family of gophers, etc.
Culture is ordinary
Family is a collective noun , referring to a basic family unit of parents and children
There is no tradition of a family dinner on Hanukkah. The family eats dinner every night during Hanukkah, according to their routine.
There are no collective nouns in the sentence. The noun 'family' can be used as a collective noun (a family of artists or a family of gophers), but in this sentence it is not.
Yes, the noun family is a collective noun for a family of otters, a family of sardines, a family of beavers, a family of friends, or a family of any other type.
You can find great family dinner recipes online. The Disney website has a great selection of family friendly dinner recipes that are sure to please the whole family. You can check out Disney's dinner recipes by following this link:http://familyfun.go.com/recipes/dinner-entrees/
The word 'family' is often used as a collective noun, however, in this sentence is is not. The noun family is a collective noun for a family of otters, a family of sardines, a family of beavers, a family of friends, or a family of any other type.
No they did not have dinner tables, but a gathering for dinner where all were welcome as a family.
yes!
"The family had to rebuild their home, even though the wife would disagree."