Определите в них видовременные формы глаголов и укажите их инфинитив. Переведите предложения на русский язык, обращая внимание на сложное подлежащее (Complex Subject), выделив его одной чертой.  
1. We couldn’t cancel the order because it had been already sent.
2. Our catalogues are being printed this week by Friday.
3. The date for the next appointment has not been fixed by him.
4. The number of the unemployed is reported to be increasing with every year.