Will and Going to

Perbedaan penggunaan “Will” dan “ Going to"

Functions and examples - will

1.      We use 'will' to give or ask for information or facts about the future. (  digunakan untuk memberi atau menanyakan informasi atau fakta pada masa mendatang)
Her parents will be here in about an hour.
All her friends will come to her wedding.

2.      We use 'will' for plans or decisions made at the time of speaking. ( digunakan untuk rencana atau keputusan yang dibuat pada waktu berbicara)
"We need some paper for the photocopier." "Okay, I'll go and get some."
"What would you like to eat?" "I'll have a pizza please."

3.      We use 'will' to predict the future. ( digunakan untuk prediksi pada masa mendatang)
I think it will rain tomorrow.
Al Pacino will win the award for Best Actor.
Do you think Brazil will win the World Cup?

4.      We use 'will' to predict the present.
Don't phone her now, she'll be busy.

5.      We use 'will' to offer to do something.(Digunakan untuk menawarkan suatu perbuatan)
I'll take you to the airport tomorrow.
That suitcase looks heavy, I'll carry it for you.

6.      We use 'will' to agree to do something. ( digunakan untuk mempersetujui suatu perbuatan)
Okay, I'll come with you

7.      We use 'will' to promise to do something.( digunakan untuk berjanji melakukan sesuatu)
I promise I won't tell anyone you broke the window

8.      We use 'will' to make requests (or give orders). (digunakan untuk membuat permintaan)
Will you open the door for me please?
Will you marry me?
Will you shut up please?

9.      We use 'will' to refuse to do something or talk about refusals. (digunakan untuk menolak melakukan sesuatu atau berbicara tentang penolakan)
No, I won't cook your dinner, you can cook it yourself.
I've asked him but he won't do it.

Functions and examples - going to

1.     We use 'going to' for plans or decisions made before speaking. ( digunakan untuk rencana atau keputusan yang dibuat sebelum berbicara)
Is John coming home soon? - Yes, I'm going to meet him at the airport tomorrow.
I'm going to watch TV in a minute, because my favourite programme is on.

2.     We use 'going to' to predict the future based on present evidence. (digunakan untuk prediksi masa mendatang berdasarkan fakta pada saat sekarang)
Look at the sky. It's going to rain soon.
Germany have just scored. England are going to lose again.

Reference:  http://www.eslbase.com/grammar/will-going-to