Good progress in English, about prepositional phrases There is a boat in the river I played in the garden yesterday. But it modifies the verb play. Is it right? Is there any grammatical error? What words can prepositional phrases modify,

Good progress in English, about prepositional phrases There is a boat in the river I played in the garden yesterday. But it modifies the verb play. Is it right? Is there any grammatical error? What words can prepositional phrases modify,

Wrong
Prepositional phrases here are not postpositive attributives, but adverbials of place
For example:
he is a man of humor.
the boat in the river is mine.
These two prepositions are used as attributives