Образуйте отрицательную и вопросительную формы. Переведите нарусский язык.1. They can understand me.2. Polly could go there.3. You can stay here for some time.4. She could skate very well.5. Peter can help me now.6. He could answer all the questions.7. She can open the window.8. They could talk to him for me.9. Peter can speak German.10. She can do it for you next week.