Answer:
<u>There is no answer if there is no passage...</u>
Sorry.
I assume that the verbal phrase underlined was "to arrive at the base camp"
It's an infinitive verbal phrase as it focuces on the indefinite form "to arrive"
It modified the word "eager", which is an adjective, and it gives more information about how eager, or what the reason for the eagerness was - this means it's an adverb phrase
So the answer is: infinitive; adverb
The Tabard Inn is the starting point for the pilgrims' journey to Canterbury. ... There is at least one more reason for having the pilgrims gather in the Tabard Inn, though: an inn could easily be a gathering place for people from diverse walks of life, accommodating commoners and more elite members of society.