가정법 Zero/First/Second/Third Conditional

Type	If-Clause	Main-Clause	Usage	Example
Zero	present simple	present simple	real condition + inevitable result, always true
First	present simple	will +	real/possible condition + probable result
Second	past simple	would +	unreal (present or future) condition+ imaginary result
Third	past perfect	would have +	expired unreal past condition + possible past result
Mixed	Past perfect	would +

• 0) If I am late, my father takes me to school.
  If you press the button, the device turns on.
  If the sun sets, it becomes night.
  If it rains, the roads get slippery.
• 1) If it rains, I will stay at home.
• 2) If I won the lottery, I would buy a big yacht.
  If I were a bird, I would fly.
• 3) If I had studied harder, I would have passed the exam.
• Mixed) If I had bought the Apple stock, I would sell it now at a high price.

주제를 바꾸면, 선생님도 바뀌나요?

(google) If I change the subject, does the teacher change too?

(papago) If I change the subject, will the teacher change too?

생각하기에 따라 zero, first 모두 가능한 것 같음.