YOU SAID:

I learn languages that will be important in my future

INTO JAPANESE

私は私の将来的に重要になる言語を学びます

BACK INTO ENGLISH

I learn languages that will be important to me in the future

INTO JAPANESE

私は将来私にとって重要になる言語を学びます

BACK INTO ENGLISH

I will learn a language that will be important to me in the future

INTO JAPANESE

私は将来私にとって重要になる言語を学ぶでしょう

BACK INTO ENGLISH

I will learn a language that will be important to me in the future