German Phrase
Das ist eine große Klasse.
Meaning
The sentence identifies something as a large class, typically referring to a group of students in a school or training setting. It can also be used metaphorically to describe any sizable group.
When to use
Use this phrase when you want to comment on the size of a classroom, a course, or any collection of people that is noticeably big. It’s common in school discussions, parent‑teacher meetings, or when comparing class sizes.
✦Grammar Breakdown
DasisteinegroßeKlasse.
Demonstrative pronoun
"Das" is a neuter demonstrative pronoun used as the subject of the sentence.
Verb "sein"
"ist" is the 3rd‑person singular present form of "sein" (to be).
Indefinite article
"eine" is the feminine nominative indefinite article, matching the noun "Klasse".
Adjective ending
After an indefinite article, the adjective takes a weak ending "-e" in the feminine nominative: "große".
Noun gender
"Klasse" is a feminine noun, so it requires the feminine article and adjective forms.
🗨In Conversation
Das ist eine große Klasse.
That is a big class.
Ja, wir brauchen mehr Lehrer.
Yes, we need more teachers.
✕Common Mistakes
Das ist ein große Klasse.
The noun "Klasse" is feminine, so the correct indefinite article is "eine".
Das ist eine großes Klasse.
After an indefinite article the adjective takes a weak ending "-e" in the feminine nominative.
Das ist die große Klasse.
When the noun is feminine, the demonstrative pronoun should be "die" if you want to use a definite article; "das" is neuter and works only as a pronoun here.
↔Alternatives
Das ist eine sehr große Klasse.
That is a very big class.
Das ist eine riesige Klasse.
That is a huge class.
Das ist eine große Gruppe von Schülern.
That is a large group of students.
Cultural Tip
In German schools, class sizes usually range from 20 to 30 pupils. Describing a class as "groß" can be relative – a primary class of 30 may feel large, while a university lecture hall with 200 students is the norm. Adjust the adjective intensity (groß, sehr groß, riesig) to match the context.

