YOU SAID:

i once ate a spider with fifteen eyes

INTO JAPANESE

私はかつて15の目を持つ蜘蛛を食べたことがあります

BACK INTO ENGLISH

I once ate a spider with 15 eyes

INTO JAPANESE

15の目を持つ蜘蛛を食べたことがある

BACK INTO ENGLISH

I have eaten a spider with 15 eyes

INTO JAPANESE

15個の目を持つ蜘蛛を食べてしまった

BACK INTO ENGLISH

I ate a spider with 15 eyes

INTO JAPANESE

15の目を持つ蜘蛛を食べた

BACK INTO ENGLISH

ate a spider with 15 eyes

INTO JAPANESE

15の目を持つ蜘蛛を食べた

BACK INTO ENGLISH

ate a spider with 15 eyes