시간 전치사 from, since

 

1. from

시작점을 나타낼 때 사용, 

we will get up earlier from tomorrow

i will be working from 9am to 5pm

they have a class from one o'clock

 

2. since

과거의 특정한 시점부터 지금까지의 기간을 나타낼 때 사용

어떤 일이 시작된 후 지금까지 지속되고 있는 상황을 설명

she has played the piano since 2002.

she and i have been friends since last year

i have been studying English since i was 10 years old

we have been living here since 2010

it has been raining since morning.