Frequency: The word is one of the 1500 most common words in English.
You use ~ to say that something happens on some occasions rather than all the time.
During the summer, my skin ~ gets greasy...
Sometimes I think he dislikes me...
You must have noticed how tired he ~ looks...
Other people’s jobs were exactly the same–~ good, ~ bad.
ADV: ADV with cl/group, ADV with v