훈련이

training

→ 훈련
phrase Rare #24,929
training 이 is a subject-marking particle attached to 훈련; it is usually not translated separately.
KO: 훈련이 곧 시작돼요.
EN: Training starts soon.

훈련이 끝나면 무기가 필요할 거 야

Once the training is over, you'll need a weapon.

— RRR: 라이즈 로어 리볼트 (2022)