This is Kristian here, and in this episode I’m going to tell you how to use from and since.
The words from and since tell us the starting point of an activity. Yet, these words are used in very different contexts.
The word since is used to present the starting time of an action that continues in the present till this date. For example:
Kristian has been teaching English since 2018. I started teaching in 2018, and I continue to do so in the present time.
We use the word from in other cases:
I will be at school from 8 o’clock tomorrow.
The shop is open from 9 a.m on Saturdays.
He works from 8 to 5 o’clock.
So remember: Since with present perfect and present perfect continuous. From in other cases.
- The doctor will be here from 10 am tomorrow – Correct
- The doctor will be here since 10 am tomorrow – Incorrect
- The doctor has been waiting for you since 10 am – Correct
- The doctor has been waiting for you from 10 am – Incorrect
- I have been in the office since 8am – correct
- I have been in the office from 8am – incorrect
- We have been walking since/from 6am.
- I have been reading this book since/from last week.