1. The sky is too dark. It will rain/is going rain/is going to rain.
2. She will fly/is flying/is going to fly to New-York one day.
3. Nick has bought some bricks and he will build/is building/is going to build a garage.
4. Samuel will have/is having/is going to have a party on Friday.
5. I have bought tickets. We will watch/are watching/is going to watch a film tomorrow.​