Лаптев Игорь Сергееич

Помогите определить видовременную форму   1 ответ

I. The electric controls were discussed yesterday. 2. The interval timer is used to
control the operational period of equipment. 3 Now the pressure switch is being
used to detect the presence or absence of material. 4. By this time the farmers will
have finished the soil cultivation. 5. It has been used to start the conveying system
and feed preparation equipment.