The word always is an adverb. Adverbs are words that modify verbs, adjectives, or other adverbs. They often provide information about how, when, where, or to what extent something happens.
In the case of always, it specifically indicates that something happens all the time or without exception. For example, in the sentence “She always arrives on time,” the word always modifies the verb arrives by indicating that the action happens every time without fail.
Understanding the part of speech of a word like always can help in constructing sentences correctly and improving overall grammar skills.