How do prepositional phrases act as adverbials?

Hello, prepositional phrases can be used as adverbials in many ways. According to the traditional grammar, adverbials are 1 1, but modern grammar is subdivided into adverbials around 15. Adverbials are (adverbs) parts of speech and can be used to modify (verbs, adjectives), usually one word or two. Adverbials in the form of (phrases) are usually used to modify this sentence and provide some other information for the sentence, such as: place, time, reason, result, purpose, way and so on.

Examples of prepositional phrases as adverbials are:

1) I live in Beijing. In Beijing, it is a prepositional phrase, which acts as an adverbial of place.

2) In the afternoon, I naturally go to the park. In the afternoon, it is a prepositional phrase, which acts as an adverbial of time.

3) I go to school by bike. (by bike is an adverbial of the prepositional phrase as way)

He robbed a bank wearing a mask. The mask is a prepositional phrase, which acts as an adverbial partner.

I hope this analysis can help you.