YOU SAID:

Then comes my brother he is a really good runner and can run at the speed of sound!

INTO JAPANESE

それから私の兄が来ます。彼は本当に良いランナーで、音速で走ることができます！

BACK INTO ENGLISH

Then my brother will come. He is a really good runner and can run at the speed of sound!

INTO JAPANESE

それから私の兄が来るでしょう。彼は本当に良いランナーであり、音速で走ることができます！

BACK INTO ENGLISH

Then my brother will come. He is a really good runner and can run at the speed of sound!