найти видовременную форму и залог глагола-сказуемого в каждом предложении:1. The free

Найти видовременную форму и залог глагола-сказуемого в каждом предложении:
1. The free market is one way for society to solve the economic problems as to what, how and for whom to produce.

2. A change in demand takes place when one of the factors assumed constant change.

3. We got this information and tried to change our priorities for business.

4. We will try to decrease the rate of unemployment next year.