He hid himself from the enemy using the art of occult hiding.

She is good at making clay dolls.

Pictophonetic characters are characters that express sound and meaning at the same time.

She hid the dildo with a shy look.

She hid the dildo, looking embarrassed.

Learning the inflected forms in Japanese is difficult.

He is struggling to understand the perfect tense in English.

He learned the past tense in Japanese.

He wrote an ancient poem using the literary language form.

This textbook explains mainly in colloquial form.