She is learning how to use a 体言 (taigen), a noun modifier.

This sentence uses many modifiers.

The attributive form in Japanese corresponds to adjectives in English.

She added beautiful adornments to her dress.

She used beautiful beads to adorn her dress.

He is good at speaking English.

In this sentence, 'beautiful' is the modified word.

In Japanese grammar, a 'renyou shuushokugo' is a part of 'yougen'.

In Japanese grammar, the attributive form is a form that modifies nouns and adjectives.

In Japanese grammar, the adnominal case is the form where nouns or pronouns modify other nouns.