Existential 有 Sentences

You already know 有 (yǒu) as "to have" (我有一本书). But 有 has a second major function: expressing existence at a location, like English "there is / there are." The pattern is Place + 有 + Noun: 桌子上有一本书 — "There is a book on the table."

The critical rule is that the noun after 有 must be indefinite — something new or unknown to the listener. You say 桌子上有一本书 (a book, indefinite) but NOT 桌子上有那本书 (that book, definite). If the item is definite, use 在 instead: 那本书在桌子上 — "That book is on the table."

This pattern is used constantly for describing scenes, locations, and what is available: 附近有地铁站吗？ — "Is there a subway station nearby?" 冰箱里有牛奶 — "There's milk in the fridge." 学校旁边有一个超市 — "There's a supermarket next to the school."

The negative form uses 没有: 冰箱里没有牛奶 — "There isn't any milk in the fridge." You can also add descriptive elements after the noun: 门口有一个穿红衣服的人 — "There is a person wearing red at the entrance."