A fronted adverbial is when the adverbial word or phrase is moved to the front of the sentence, before the verb. Earlier today, I discovered fronted adverbials. So here, 'earlier today' is a ...
“Slowly” is an adverb here as it describes how fast the train is moving. Oh, here is a group of passengers, waiting "patiently" for their train. "Patiently" is the word describing the verb ...