видовременная форма глагола сказуемого в английском языке

Ответ от Nikita Nik[гуру]
1. The Tay Bridge was built in Scotland in 1878 and collapsed in 1879 when a train was
crossing it. It was one of Britain’s first serious rail disasters.
was built - past passive voice.
was crossing - past continuous; active voice
2. The Ukrainian government decided to resume the construction of the Metro, which was
stopped because of financial difficulties. A lottery is being held and 40% of its income will be used to fund the work.
was stopped - simple past passive voice.
is being held - present continuous passive voice.
will be used - simple future passive voice.
3. For many years, railway track has been laid and repaired by hard manual labor. Now this
work is being done by means of up-to-date track machines and mechanisms.
has been laid and repaired - present perfect passive voice
is being done - present continuous passive voice.
4. In 1825, there were only 2 locomotives available for use on a public railway; by the turn
of the century, their number had increased to 70,000.
had increased - past perfect active voice.