Question

correct tense:(1) I could have helped you if I (be) present there.
(2)Most of the soldiers (kill)in the battle.​

Answer 1

Answer:

i could have helped you if I had been present there

most of the soldiers were killed in the battle

Answer 2

Answer:

(1) have been

(2) kill or will kill (depends on what the tense of the sentence is)