YOU SAID:

I've got a spider in my head

INTO JAPANESE

頭の中に蜘蛛がいる

BACK INTO ENGLISH

There is a spider in my head

INTO JAPANESE

頭の中に蜘蛛がいます

BACK INTO ENGLISH

I have a spider in my head

INTO JAPANESE

頭の中に蜘蛛がいます

BACK INTO ENGLISH

I have a spider in my head