YOU SAID:

i feel sad and lonely

INTO JAPANESE

私は悲しくて孤独を感じます

BACK INTO ENGLISH

I feel sad and lonely

INTO JAPANESE

私は悲しく寂しいです

BACK INTO ENGLISH

I am sad and sad

INTO JAPANESE

私は悲しいです

BACK INTO ENGLISH

I'm sad

INTO JAPANESE

私は苦しい

BACK INTO ENGLISH

I'm sad