[English study] Situational topic - Jobs people have

Here are some expressions like vocabulary, useful expression, grammar related jobs people have topic in English. I had reviewed the English class, and left the consequence of the class.

Vocabulary

• former co-worker
  **Don't use like ex-worker or previous co-worker.**
• cryptic
  **Don't make people know something directly.**
• Freudian slip
  **An mistake that is unintended from your mind or without consciousness.**
• out of the way
  **The way that you don't go so frequently.**
• studious
  **Pronunciation is "stu[u]dious".**
• off the top of one's head
  **Think of something without any thought.**
• Donuts
  **Informal language: Policeman in the US.**
• Impartial
  **Neutral**
• Sand bagger
  **Someone is humble but the one's ability is great.**
• Perks
  **This word means a benefit**
• Power behind the scene
  **A power that we can't see normally.**

Grammar Focus -<can, could, be able to: ability>

Those have some meaning but this grammar point can be applied a about the meaning, ability. As you can see below, when you say something about the ability in the past or present, "be able to" is always safe.

<To talk about ability in the past on one specific occasion in positive sentences, we use "was/were able to only not "could>

• I was able to finish the race in less than an hour yesteday. (Correct case)
• I could finish the race in less than an hour yesterday. (Incorrect case)

Speaking Mistakes

• I pulled out a tooth. (This is not wrong but is not common.)
  => I got a tooth removed.
  => I got my stitches taken out.
• I didn't feel anything on my gum.
  => They froze my mouth.
• My major is something.
  => I am majoring in something.
• I am an undergrad.
  =>  I am an undergraduate school student.
• When I was in high school.
  => When I was a high school student.
• I was grown up.
  **When you want to give an advice to someone, you can just say "grow up".**
• He study very well. (This expression is not so common.)
  => He is so studious.
• Do multi-task
  **Do multi-tasking (Incorrect case)
• A doctor does a surgery.
  **A patient get a surgery. The expression is different and depends on the subjective.**