Нужно поставить предложение в Present Continuous, Past Continuous, Future Continuous, General Questions.
Вот предложение The went to St. Peterburg in summer.

Present Continuous- The went to St. Peterburg is going to be this summer
Past Continuous - The went to St. Peterburg was being  in (that) summer.
Future Continuous - The went to St. Peterburg will be being in summer.
General Questions- Is The went to St. Peterburg in summer/ was The went to St. Peterburg being in summer/ will be The went to St. Peterburg being in summer