A temporary action happening now

Something which is going on right now (but it will stop in the future)

A definite plan for the future

Something we intend to do, usually in the near future

Type of action

Examples

Explanations

Temporary action happening right now

John is winning the game.

Right now, John is winning, but the game isn't finished yet.

It's raining outside.

It's raining right now (but it may stop soon).

Soraya's working in the library.

She's working there right now.

Sihol is spending Christmas with his family.

He's spending Christmas with his family right now, this year. (Maybe next year he won't.)

Definite plan for the future

I'm playing soccer tomorrow.

This plan is already arranged and definite.

Sarah's leaving for San Francisco on Friday.

She has probably already bought her ticket.

The Olympics are taking place here next year.

This is already certain.

I'm having a party next week.

All the plans have been made.