Still can be used as a noun, verb, adjective, or adverb.
The still of the night somehow seemed ominous. (noun)
The police seized the illegal still. (slang noun: alcohol distillation equipment)
His assurances could not still the protests from the miners. (verb)
The still body of a fallen rebel lay over the cannon. (adjective)
The scientists took a video and several still photographs. (adjective)
The rain was still falling the next morning. (adverb)
The igloo was drafty, but it was still better than no shelter at all. (adverb)
An adverb.
Still is an adverb in that sentence.
"still" is an adverb, modifying the verb "love"
Will is an auxiliary verb in that example.
Into and after are prepositions. Above can be used as a preposition and an adverb.
Still is a verb in that sentence.
part of speech
The part of speech for this particular word is a noun.
The part of speech for "answer" is a noun.
adverb
what part of speech is beneath
adjective or nounadjective: "he is still a mere child"as a noun the definition is: a lake or a pond