Il y a combien de jours dans une semaine = "How many days are there in a week?"
The answer to the question Il y a combien de mois dans une année? ("There are how many months in one year?") in French is Il y a douze mois dans une année ("There are 12 months in one year").
"How many children are there in your family"
The question 'Combien de temps' means How long, or How much time [does it take]. In the word-by-word translation, the adverb 'combien' means 'how'. The preposition 'de' means 'from, of'. And the noun 'temps' means 'time'.
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'.
"Dans combien de temps?"
50
Il y a combien de jours dans une semaine = "How many days are there in a week?"
Il y a combien de jours dans la semaine? Il y en a sept.
How many are we in the room?
combien pour ce petit chien dans la vitrine (a song popular in the sixties) means 'how much for that pupy in the display window / showcase
"how many are you in your class?"
Il y a 12 mois dans une année.
combien de mois est-ce qu'il y a dans l'année ? means "how many months are there in the year?" in English.
That is 1,000 ml.
Question : Il y a combien de jours dans une semaine ? Réponse : Il y a sept jours dans une semaine. Ou : Une semaine comprend sept jours.
The answer to the question Il y a combien de mois dans une année? ("There are how many months in one year?") in French is Il y a douze mois dans une année ("There are 12 months in one year").