The sun always rises in the east.
usually / generally (보통)
Children usually(generally) like to watch cartoons.
often / frequently (자주)
Parents often (frequently) read to their children.
sometimes / occasionally (가끔)
Rivers sometimes (occasionally) flood after rain.
rarely / seldom / hardly ever (드물게, 거의 안)
It rarely (seldom) (hardly ever) rains in the desert.
never / not ever (절대 안)
The sun never rises in the west.