We all know here 'some more' used as an 'adverb':
Would you like some more cake?
I think we still need to practice some more.
If the rice is still not cooked, add some more water.
Would you like some more potatoes?
I need to work on it some more.
I wonder how 'some more' used as an 'adverb' can be placed before noun in bold sentence. Is it grammatical?
I conclude that 'more' is likely to be an adjective and then 'some' can be used as an 'adverb' on above examples.
Best Answer
In
i. He walked more rapidly.
rapidly is an adverb modifying the verb walked, and more is an adverb modifying the adverb rapidly.
In
ii. We still need to practice some more
more is an adverb modifying the verb to practice, and some is an adverb modifying the adverb more.
As you recognize, more can be either an adjective or an adverb, so here is a second way to understand your sentence analyzing more as an "adjective":
iii. We need to do some more [something].
In iii, [something] could be eating, drinking, talking, practicing -- any "gerund" understood to have been derived from the main verb.