YOU SAID:

so one day i was walking and there was a big whale

INTO JAPANESE

ある日私は歩いていて大きなクジラがいました

BACK INTO ENGLISH

One day I was walking and had a big whale

INTO JAPANESE

ある日私は歩いていて大きなクジラを飼っていました

BACK INTO ENGLISH

One day I was walking and keeping a big whale

INTO JAPANESE

ある日、私は歩いて大きなクジラを飼っていました

BACK INTO ENGLISH

One day I walked and kept a big whale

INTO JAPANESE

ある日、私は歩いて大きなクジラを飼いました

BACK INTO ENGLISH

One day, I walked and kept a big whale

INTO JAPANESE

ある日、私は歩いて大きなクジラを飼いました

BACK INTO ENGLISH

One day, I walked and kept a big whale