YOU SAID:

I have big children with different genders

INTO JAPANESE

私は別の性別で大きな子供を持っています

BACK INTO ENGLISH

I have a big child in a different gender

INTO JAPANESE

私は別の性別に大きな子供がいます

BACK INTO ENGLISH

I have a great children to another gender

INTO JAPANESE

私は別の性別に大きな子供を持っています

BACK INTO ENGLISH

I have a great children to another gender