Here's why:
* They modify verbs: They describe how often or how frequently an action happens.
* Example: "I never go to the movies." (modifies "go")
* Example: "She always eats breakfast." (modifies "eats")
* They can also modify adjectives or other adverbs:
* Example: "The room was always clean." (modifies "clean")
* Example: "He walked very slowly always." (modifies "slowly")
Let me know if you'd like more examples!