AA / AABB
Adjective reduplication is a common Chinese grammatical pattern where an adjective is repeated to intensify or soften its meaning. For single-character adjectives, the pattern is AA (e.g., 密密 meaning "closely" or "densely"). This technique adds vividness and is especially common in literary and descriptive language.
她的头发长长的,眼睛大大的,特别可爱。
tā de tóufà chángcháng de, yǎnjīng dàdà de, tèbié kě'ài.
Her hair is long, her eyes are big, and she is especially cute.
天气暖暖的,我们决定去公园散步。
tiānqì nuǎnnuǎn de, wǒmen juédìng qù gōngyuán sànbù.
The weather was nice and warm, so we decided to go for a walk in the park.
这道菜做得香香的,孩子们都抢着吃。
zhè dào cài zuò de xiāngxiāng de, háizimen dōu qiǎngzhe chī.
This dish was made so fragrant that the children all scrambled to eat it.