Questions & Answers about Die Jungen und die Mädchen lachen oft.
Why do both Jungen and Mädchen use die for "the"?
Why doesn't the word Mädchen change its spelling to become plural?
Nouns that end in -chen never change their spelling in the plural. You can only tell it means "the girls" rather than "the girl" because it uses the plural article die instead of the singular article das.
How does der Junge change to become plural?
Why do we use the verb lachen instead of lacht?
Because the subject is plural. "The boys and the girls" is a group, so we treat it as "they". In German, verbs for "they" usually end in -en, so we use the base form lachen.
The subject is very long. Does that change where the verb goes?