YOU SAID:

i don't know why or how but i'm getting bored

INTO JAPANESE

理由も方法もわかりませんが、退屈しています

BACK INTO ENGLISH

I don't know why or how, but I'm bored

INTO JAPANESE

理由も方法もわかりませんが、退屈です

BACK INTO ENGLISH

I don't know why or how, but it's boring

INTO JAPANESE

理由も方法もわかりませんが、つまらない

BACK INTO ENGLISH

I don't know why or how, but it's boring