подчеркните герундий и укажите его форму:1 One such campaign claimed the life

Подчеркните герундий и укажите его форму:

1 One such campaign claimed the life of the foremost Slavic druzhina leader, Svyatoslav I, who was renowned for having crushed the power of the Khazars on the Volga.
2 The tsar celebrated his victory over Kazan by building several churches with oriental features, most famously Saint Basils Cathedral on Red Square in Moscow.
3 He believed that Japan was so weak to evict Russia military, so he proposed giving Russia control over Manchuria in exchange for Japanese control of northern Korea.
4 The Japanese attempted to block the entrance to port Arthur by sinking several cement filled steamers in the deep water channel to the port.