you are not children? is that really an accurate translation?
Of course it is. Why shouldn't it?
What is tye difference between sunt and este?
'Sunt' is for 3rd person plural - They are. 'Este' (or more informally 'e') is 3rd person singular - He/she/it is.
is sunteti a pulral suntem?
No, sunteți is you (pl.) are and suntem is we are.
So it should be your are not a child & change the tense of the last word
Should be you are not a child or you all are not children!