A phrase is a group of two or more words that does not contain a subject and a verb working together. There are many types of phrases, including verb phrases, adverb phrases, and adjective phrases.
In the following examples, however, the prepositional phrase might be preferred as it is more succinct: 'Why are you so late?' 'On account of the traffic. Incredibly heavy!' 'Why are you so late?' ...
For number 5, you can choose whether you want to use two prepositional phrases, or two adverb clauses. - The manager praised her employees for their dedication and for their willingness to work on ...
Lim Chiu Lan from Malaysia asks about prepositional phrases: Would you be good enough to explain to me what is the difference between these prepositional phrases: good at and good in?