Location / Places
We're on our balconies.
Lots of people are on the beach.
I would love to go on the ride!
It's on the table.
I'm sat on the chair.
She left your key on the side.
The car is on the road.
The race is on Tuesday.
I'll go back to work on Monday.
Valentine's Day is on 14th February.
On Christmas Day I always wake-up early.
'On' is used for a specific day: Tuesday, Wednesday, 1st June, 2nd June, Christmas Day, Easter Sunday.
I'm getting on the plane now.
She's on the bus - I can't call her.
We're going to Rome on the train.
Everyday he gets on his bike and rides to work.
We use 'on' for all transport which you walk 'on' to. For example, big planes are boarded by walking on, so we say 'I'm on the plane'. Buses are walked 'on' to, so we say 'I'm on the bus'. With a 'bike' you are the object 'on' the bike. Swap the bike for a table and you for keys and it's the same relationship.
I'm on time.