СОСТАВЬТЕ ПРЕДЛОЖЕНИЯ В НАСТОЯЩЕМ И БУДУЩЕМ ВРЕМЕНИ УКАЗАННЫХ ВРЕМЁН, ОБРАЩАЯ ВНИМАНИЕ НА ТИП ПРЕДЛОЖЕНИЯ (УТВЕРД., ВО ОТРИЦАТ.) ПЕРЕВЕДИТЕ ВСЕ ПРЕДЛОЖЕНИЯ (9 предложений)

PRESENT, PAST, FUTURE CONTINUOUS

I/ to work/ at this problem

PRESENT, PAST, FUTURE PREFECT

John and Jane/ not/ to learn/ this poem properly

PRESENT, PAST, FUTURE INDEFINITE

This old professor / to come/ to the university/ at 2?

1. I am working at this problem

2. I was working at this problem

3. I will be working at this problem

4.  John and Jane have not learnt this poem properly

5. John and Jane had not learnt this poem properly

6. John and Jane will not have learnt this poem properly

7. Does this old professor come to the university at 2?

8.Did this old professor come to the university at 2?

9. Will this old professor  come to the university at 2?

Объяснение: