Use of to
1. Destination / direction
A I am going to Australia at the end of June.
B we are going to a restaurant
c I usually take the bus to work.
2. Time/ Time between two points
It’s a quarter to 1.
It’s 5 minutes to 8.
Time between two points
The supermarket is open from 9 to 11 pm.
The restaurant is open from Monday to Friday.
3. Comparing two things / preference
I prefer sleeping to working.
I prefer chocolate ice cream to vanilla ice cream.
Do you prefer tea to coffee?
4. Limit/endpoint
She drove to the park.
You have 30 minutes to complete the test.
The store is open from 9 am to 7 pm.
Now you have one minute
Use of for
1. Duration/period of time
I have been waiting for 20 minutes already. Where are you?
2. Helping someone
I can do this for you.
Let me explain this concept for you.
3. Favour
Can you please do something for me?
4. Function/use
For plus ing
The camera is used for taking pictures underwater.
Reason – to plus v1
I started going to bed at 10 to get more sleep.
Purpose – for plus noun
I started to bed at 10 for my health.