YOU SAID:
my sister is getting yelled at
INTO JAPANESE
私の妹は怒鳴られています
BACK INTO ENGLISH
My sister is yelling
INTO JAPANESE
私の妹は叫んでいます
BACK INTO ENGLISH
My sister is screaming
INTO JAPANESE
私の妹は叫んでいます
BACK INTO ENGLISH
My sister is screaming
That didn't even make that much sense in English.