It tells us the kind of red the tractor is. Another way to modify verbs, adjectives and adverbs is by using adverbials. Adverbials are phrases that do the same job as adverbs. Whereas an adverb is ...

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 ...