YOU SAID:

I'm gonna build a great wall and Mexico is gonna pay for it.

INTO JAPANESE

私は偉大な壁を建てようとしており、メキシコはそれを支払うつもりです。

BACK INTO ENGLISH

I am trying to build a great wall and Mexico will pay it.

INTO JAPANESE

私は偉大な壁を建てようとしており、メキシコはそれを支払うでしょう。

BACK INTO ENGLISH

I am trying to build a great wall and Mexico will pay it.