YOU SAID:
So I cannot be here today because you are rude and mean
INTO JAPANESE
それで私は今日ここにいることはできません
BACK INTO ENGLISH
So I can not be here today
INTO JAPANESE
だから私は今日ここにはいられない
BACK INTO ENGLISH
So I can not stay here today
INTO JAPANESE
だから私は今日ここに滞在することはできません
BACK INTO ENGLISH
So I can not stay here today
You've done this before, haven't you.