Hello, fellas. In this session we will learn the use of always in the progressive.
Always is usually used in the simple present to describe habits or everyday activities.
Example: I always go to school at 6:30.
It may be used in the present progressive to complain, express annoyance or anger.
Example: She is always coming late!
Beside always, the words forever and constantly can also be used in the present progressive to convey annoyance.
Example: She is always/forever/constantly coming late!
Always, forever, and constantly may be used in the past progressive to express annoyance or anger.
Example: She was always/forever/constantly coming late.
Betty Schrampfer Azar, Understanding and Using English Grammar: Third Edition