Is it this statement right?

我回來了巴西有六个月。This means I am back to Brazil for 6 months.

(I will be back to Brazil on first June.) Another version in addition to the other corrections, 六月一号我歸回巴西

Is it this statement right?

我回來了巴西六月。 (I will be back to Brazil on first June.)

六一回巴西。

Is it this statement right?

我回來了巴西六月。 (I will be back to Brazil on first June.)

我要在六月回巴西。will_可以用“要、或将”  时间——我们经常放在前面。

Is it this statement right?

我回來了巴西六月。 (I will be back to Brazil on first June.)

我在六月一號時會回巴西

I think ...   我回來了巴西六月。→→ Brazil, June, I'm back !!