WHY QUESTION (What for, 3 pattern: WHY)

3 patterns : WHY

1. what for ? : why 

Q : We have x-ray machines, what for?

(What is the use of x-ray machines)

=> why did we invent x-ray machines.

==>we have x-ray machines because we need to see inside our physical body.

Q : You didn't eat dinner what for? ==> why didn't you eat your dinner?

A : I always don't eat dinner because I'm not hungry.

Q : you are sick why for?    == > why are you sick?

A : I am sick.

Q : You have a laptop, what for?

A : I have a laptop because I need it for my presentation in group class.

Q : You made your homework what for?

A : because it helps me learn English more you.

-- motivate.

Q : We drank soju, what for?

A : We drink alcohol because we hope to solve stress.

--purpose.

 

2. why + be verb + subject(human) + verb

=> why are you studying English? (correct)

=> why is English study (incorrect)

A : I am studying English because I want to work very well.

3. why + does/do/did + subject(human) + base form

=> Q : Why do you study English?

     A : I need English to work very well

     Q : Why did she leave home?

     A : She left home because she wants freedom.

4. why + modals + subject(human) + base form

=> Q : why can't I study English?

     A : I don't know grammar.