Remember, 'going to' is used to describe a plan or decision that you have made about the future.
We use 'will' for decisions which we make at the moment of speaking, something which hasn't been planned before.
For example, in a restaurant:
Waiter: What would you like?
Customer: (looking at the menu) Mmm, I think I'll have the steak.
Will is a modal form. It always stays the same whatever the subject and is followed by a base infinitive (the infinitive without 'to'.)
Although the form of 'will' doesn't change we usually contract it to 'll.
Subject | will | base infinitive |
I s / he you we they | will 'll | go to bed now. have an early night. go to the shops, if you like. answer the door. bring a cake. look after it for you. |
1-c, 2-b, 3-f, 4-h, 5-g, 6-a, 7-d, 8-e