In our lesson we have
Be going to
- future plans (personal)
- prediction based on something we can see or hear
- future arrangement
- fixed plan
Is this right? Can someone explain this to me with examples?
You use "be going to" for your future plans - the things you intend/have decided to do in the future. For example:
I am going to have a meal with my friends tonight.
you can also use "be going to" for a prediction as you see or hear. For example:
There are clouds in the sky. It's going to rain.
You use the present continuous for future arrangements and fixed plans. For example:
I am going to an ice hockey match in the evening. I bought a ticket for it yesterday.
Nevertheless, you often use either be going to or the present continuous to have similar meanings.
We are going to have a party next week (we intend/have decided to do so).
We are having a party next week (we have made arrangements).
I am walking in the park.
This means you are walking in the park right now as you say this.
I am going to walk in the park
This can mean the same as I will walk in the park.
Both of these can mean to intend soon - as in I intend soon to walk in the park.