Grammar
Adjective endings in the C-Test: how to choose the ending
The C-Test removes the second half of a word. With adjectives, that half often contains the exact ending that decides the point.
Why adjectives in particular?
The C-Test rule removes the latter half of every second word. A short adjective such as “gut” leaves very little, while a longer form such as “freundlichen” loses the part that carries the declension. Across eight texts, many gaps can reduce to this same grammatical decision.
That is useful: these are not twenty unrelated exceptions but one system. The same decision can recur across texts, so practise it in isolation and then check it in context.
The principle: consider article and adjective together
German adjective endings follow a useful principle: case, gender, and number need to be visible in the noun phrase, and the article helps determine the adjective pattern. This is a learning aid, not a ban on repeated marking: “frischer heißer Kaffee” has two strong adjectives. Check the genitive exceptions in the table too. If the article already shows the signal clearly, the adjective can take a weak ending. If the article is absent or does not fully mark it, the adjective must carry more information.
This produces three patterns. After a definite article such as “der, die, das”, endings are weak: mostly -en, with -e in a few nominative and accusative singular forms. After “ein, kein, mein”, the adjective carries the signal where “ein” has no ending: “ein guter Tag”, “ein gutes Buch”. Without an article, the adjective carries the full signal: “guter Wein”, “kaltes Wasser”.
The test-day shortcut
For every adjective gap, ask three short questions: Is there an article before it? Does that article already show case and gender clearly? If yes, the ending is usually -en or -e. If not, the adjective ending must reveal the missing information.
At first, this takes longer than the time available per gap. That is why isolated practice helps. The goal is to answer “mit dem neu…” as -en without a long pause or table lookup.
What else the gap reveals
The halving rule can be calculated in a worked example: an even-length word loses half, while an odd-length word loses the larger half. In the real onSET, however, the missing length is not a reliable visible hint; “freund… → freundlichen” here is notation, not something to count.
The case is also often determined before the adjective appears. A preposition such as “mit” or “aus” requires dative, while “für” or “ohne” requires accusative. Reading the preposition can settle half the ending before you identify the adjective itself.
A practical practice path
Do not learn the three patterns only as tables. Use sentences: ten with a definite article, ten with an indefinite article, and ten without an article, completing only the ending. After a few rounds, you will notice that the decision is much smaller than the tables suggest.
Then return immediately to real context. Choosing endings in an isolated drill is easy; choosing them in a timed gap text is the actual exam skill. Moving from understanding the rule to applying it under pressure is what turns grammar knowledge into points.