используйте правильную форму (придаточные предложения)
i (stay) at home if it (rain)
mother (buy) me a puppy when she (get) money
Nick (go) to the cinema when he (finish) his lesson
if you (phone) Bob he (come)

I will stay at home if it rains.Mother will buy me a puppy when she gets money.Nick will go to the cinema when he finishes his lessons.If you phone Bob, he will come.