Выпишите из каждого глагол – сказуемое и определите его видовременную форму и залог. Напишите форму инфинитива глагола.
1. Modern industrial buildings have demonstrated the advantages of reinforced concrete arches, metal frames and glass walls.
2. The high degree of mechanization is successfully achieved by reinforced concrete blocks and units.
3. Large blocks of stone were transported over long distances by land and water.
4. The precast concrete technique is constantly being improved in our country.
5. New plants of large capacity have been coming into service in many parts of the world.
6. They will have finished the construction by the end of the next year.

Спасииибо))

1)have demostrated - active voice, Present Perfect, to demonstrate2)is achieved - passive voice, Present Simple, to achieve3)were transported - passive voice, Past Simple, to transport4)is being impoved - passive voice, Present Continuous, to improve5)have been coming - active voice, Present Perfect Continuous, to come6)will have finished - active voice, Future Perfect, to finish