YOU SAID:

My hair is turning gray

INTO JAPANESE

私の髪は白髪になりつつです。

BACK INTO ENGLISH

My hair is turning gray.

INTO JAPANESE

私の髪は灰色に染まってゆくです。

BACK INTO ENGLISH

My hair is turning grey is.

INTO JAPANESE

私の髪は白髪まじりです。

BACK INTO ENGLISH

My hair is gray hair is streaked with.

INTO JAPANESE

私の髪は白髪まじりです。

BACK INTO ENGLISH

My hair is gray hair is streaked with.