This is wrong because an adverbial phrase <span> the term for two or more words which play the role of an adverb.
this does not include your sentence, here is an example of what i am talking about.
</span><span><span>I will sit quietly.</span>(normal adverb)<span>I will sit in silence.</span>(adverbial phrase)<span>I will sit like a monk meditates.
</span></span><span>(adverbial clause)
hope this helps !</span>
C <span>They modify adverbs.</span>
