YOU SAID:

help me i think my sister is from an alien planet!

INTO JAPANESE

私の妹は外人の惑星から来たと思うよ！

BACK INTO ENGLISH

I think my sister came from a foreigner's planet!

INTO JAPANESE

私は妹が外国人の惑星から来たと思う！

BACK INTO ENGLISH

I think my sister came from a foreign planet!

INTO JAPANESE

私は妹が海外の惑星から来たと思う！

BACK INTO ENGLISH

I think my sister came from an overseas planet!

INTO JAPANESE

私は妹が海外の惑星から来たと思う！

BACK INTO ENGLISH

I think my sister came from an overseas planet!