"The girls and the boys are calm."
Translation:Les filles et les garçons sont calmes.
Sont- means 'are' when using ills or elles
Ont- means "have" when using ils or elles
In the case of 'elles ont', the sound 'z'(as in 'zoo') is pronounced (or 'з', if you are familiar with Russian alphabet). Whereas in the case of 'elles sont', the sound of 's' is pronounced (as in 'service')
'les' is what is put in front of plurals instead of le or la, it is for both feminine and masculine e.g les hommes / les femmes / les enfants.
'des' is put in front of a plural noun of unknown amount, e.g les femmes sont une robe (the women have a dress) VS les femmes sont des robes ( the woman have some dresses --*more than one dress between them but not specifed how many exsactly but is translated to 'the woman have dresses'
on the example is ont from verb avoir : les femmes ont des robes = the woman have some dresses
le is the masculine 'the' e.g le homme / le garçon
la is the feminine 'the' la femme / la fille
les is the 'the' for both masculine or feminine IF plural e.g les hommes / les femmes / les enfants
I am soo confused i do not know this really but i do know oui tu es calme