What makes me happy: adjective agreement, read and respond to a poem in writing

When adjectives come before nouns, they have different endings for definite and indefinite articles. For plural nominative nouns, add '-en' to all adjectives with definite articles; without an article, the ending is '-e'. When singular nouns are used without an article, the adjective ending is the same as for the indefinite article. Many verb infinitives can make neuter nouns; this is called nominalisation. Knowledge of vocabulary and structures makes it possible to understand a poem and respond to it creatively in writing.