1. They are going to go to the shop together.
2. I'm going to buy a swimming costume in "Sporttovary".
3. What was she going to buy for her son David?
4. When are Anna and Peter going to visit their friends?
5. Suzanna is going to have breakfast in cafe not far from home.
Во избежание тавтологии форму be going to не употребляют с глаголами to go и to come. Вместо нее обычно используют форму Present Continuous этих глаголов.
1.Они собираются пойти вместе в магазин.
1. They are going to the store (shop) together.
Или еще, например:
When are you going home?
Когда ты собираешься (пойдешь) домой?
С глаголом come тоже самое:
Вместо - He is going to come here. говорят: He is coming here.
Он собирается прийти (придет) сюда.
УДАЧИ!!!