YOU SAID:

in case of fire break with hammer

INTO JAPANESE

ハンマーで火災が起きると

BACK INTO ENGLISH

When there's a fire with a hammer

INTO JAPANESE

ハンマーで火事が起きたとき

BACK INTO ENGLISH

When a fire broke out with a hammer

INTO JAPANESE

ハンマーで火事が起こったとき

BACK INTO ENGLISH

When a fire broke out with a hammer