Future tenses

Do you think you will get married before you're 30? (prediction)

We'll go out for dinner when he gets in. (use the future with "will" when using "when" or "if")

I am going to be rich when I am older. (prediction that we're not sure about)

Can I borrow 90 dollars? I will pay you back tomorrow. (They just decided this plan)

I am flying to London tomorrow night. (fixed plan)

I haven't made any plans for Easter. I will probably stay at home. (They're not sure what they will do)

Peter knows that he is going to fly to Chicago next week. (future plans)

John hasn't eaten. - Don't worry I will make him a sandwich. (Use the future with '"will" to react to a present situation.)

I'm going home. I'll see you tomorrow. Bye! (they just decided)

I will be studying at nine tomorrow evening. (use the future continuous to express what will be happening at a specific moment in the future.)

Unless he arrives soon, we will not go to the party. (Use the future with "will" in first conditional sentences)

I am going to go home after this lesson. (It's a plan)

I am meeting my friends at the cinema after work tomorrow. (fixed plan)

Jack is having a dinner party next Saturday. (events which have been planned for the future)

Look at those clouds! It is going to rain! - Use the future with "going to" when you can see that something is about to happen.

Oh no! I've broken the vase. I will say that Nemo broke it. (Use the future with "will" when reacting to something that happens at that moment)

I am going to be a doctor when I finish university. (prediction)