YOU SAID:

After my teacher killed my friend, I was sure to kill my other friends. After I did that, I killed my teacher.

INTO JAPANESE

先生が私の友人を殺した後、私は他の友達を殺すことに確信していました。私がそれをした後、私は先生を殺しました。

BACK INTO ENGLISH

After the teacher killed my friend, I was convinced that I would kill other friends. I killed the teacher after I did it.

INTO JAPANESE

先生が私の友人を殺した後、私は他の友達を殺すだろうと確信しました。私はそれをした後に私は先生を殺した。

BACK INTO ENGLISH

Teacher killed a friend of mine and then I would kill other friends were convinced. After I did it I killed the teacher.

INTO JAPANESE

先生は、私の友人を殺した、他を殺すためでしょうし、友人は確信していた。それをやった後、私は教師を殺した。

BACK INTO ENGLISH

The teacher would kill my friend, kill the other, friends were convinced. After doing that, I killed the teacher.

INTO JAPANESE

先生は私の友人を殺すだろう、他を殺す、友人は確信していた。それをした後、私は先生を殺した。

BACK INTO ENGLISH

He was convinced that he would kill my friend, kill others,. After that, I killed the teacher.

INTO JAPANESE

彼は私の友人を殺し、他人を殺すと確信していた。その後、私は先生を殺した。

BACK INTO ENGLISH

He was convinced that he would kill my friend and kill others. After that, I killed the teacher.

INTO JAPANESE

彼は私の友人を殺して他人を殺すと確信していた。その後、私は先生を殺した。

BACK INTO ENGLISH

He was convinced that he would kill my friend and kill others. After that, I killed the teacher.