What are the parts of speech? He let out a bestial roar; his eyes began to bulge, and his nostrils flared with anger.

In the English language, there are eight main parts of speech: noun, pronoun, adjective, determiner, verb, adverb, preposition, conjunction, and interjection.

Parts of speech in the given sentence are:

He - third person singular, personal pronoun

let out - verb (past simple tense of to let)

a - determiner (indefinite article)

bestial - adjective

roar - noun

his - third person singular, possessive pronoun

eyes - noun (plural)

began - verb (past simple tense of to begin)

to bulge - verb (infinitive)

and - conjunction

his - third person singular, possessive pronoun

nostrils - noun (plural)

flared - verb (past simple tense of to flare)

with - preposition

anger - noun