Write what you will do:
1) when summer comes
2) when the weather changes
3) if it rains
4) if it doesn't rain
5) if it snows
6) if it doesn't snow

When summer comes, I will have a rest.When the weather changes, I will be very happy.If it rains, I will stay at home.If it doesn't rain, I will go for a walk.If it snows, I will make a snowman.If it doesn't snow, I will go to Sweden.