he has breakfast with his family every day（否定句）

He doesnt have breakfast with his family every day.
我们也刚教，百分百正确哦。
愿你期末考取得好成绩！加油啦！

不完全否定是he doesnt have breakfast with his family every day. 意为他不是每天和他的家人吃早餐。也就是not every day 之意
完全否定是he never has breakfast with his family 意为从不和家人吃早餐。

he does not have breakfast with his family every day

He doesn't have breakfast with his family every day.