유인 비행에 안전하다고 증명했습니다

yuin bihaenge anjeonhadago jeungmyeonghaeyo

I prove that the manned flight is safe

yuin bihaenge anjeonhadago jeungmyeonghamnida

I prove that the manned flight is safe

yuin bihaenge anjeonhadago jeungmyeonghaesseoyo

I proved that the manned flight was safe

yuin bihaenge anjeonhadago jeungmyeonghaetseumnida

I proved that the manned flight was safe

yuin bihaenge anjeonhadago jeungmyeonghal geoyeyo

I will prove that the manned flight is safe

yuin bihaenge anjeonhadago jeungmyeonghal geosimnida

I will prove that the manned flight is safe