Verbs which are not used in progressive/continuous forms (state verbs)
Not every verb can be used in progressive form. We do not use verbs which express situations there. But we often use verbs which express actions (dynamic verbs) in progressive forms.
The following verbs are not normally used in the progressive forms: agree, be, like, hate, hear, imagine, know, need, prefer, promise, realize, remember, see.
Sometimes verbs can be used in progressive forms when they have certain meanings. In another meaning it is not possible to use them in progressive forms. Watch the following examples:
1. 800 pound gorilla - the biggest, most powerful group or company Example: "If we follow our plan to make this new software, we're going to have a lot of competition, including from the 800 pound gorilla, Microsoft."
2. (a rising tide that) lifts all boats - something that helps all people or all groups Example: "We're only number three, but the current economic growth will lift all boats, so we're sure to make a profit this year."
Medical Terms: A Clean Bill of Health From the Doctor
Everyday expressions we use to describe someone's health.
Now, the VOA Special English program, Words and Their Stories.
(MUSIC)
Many professions have their own words and expressions. This is true for the medical profession. Doctors use many technical terms that most people do not understand. But there are also expressions we use every day to tell about a person’s health. Let me explain.
FOOD FOR THOUGHTS 
