What does 'Il y combien de personnes dans ta famille' mean?

The question 'Il y a combien de personnes dans ta famille' means How many people are there in your family? In the Word-by-Word translation, the phrase 'il y a' means 'there are', by way of 'il' as '[he/it]', 'y' as 'there', and 'a' '[he/she/it] has'. The adverb 'combien' means 'how much, how many'. The preposition 'de' means 'from, of'. The noun 'personnes' means 'persons, people'. The preposition 'dans' means 'in'. The possessive adjective 'ta' means 'your'. And the noun 'famille' means 'family'.