Write these sentences and use a comma where it is necessary if he comes he will tell you everything when dick arrives home ill ask him about it john will go to the country if the weather is good we shall go boating if it isnt windy when your granny is at home , she will tell you your favorite fairy tale

If he comes, he will tell you everything.
When Dick arrives home, I'll ask him about it.
John will go to the country if the weather is good.
We shall go boating if it isn't windy.
When your granny is at home, she will tell you your favorite fairy tale.