together with=as well as 还有along with和前两个有什么相同和不同

在语法上用法相同,没有区别：
as well as
John ,together with his friends,is coming to see us today.(John做主语,谓语是is.)
along with那在这里它们的中文意思大概是和and相同的吗？嗯。与--- -一起、 和， 同-- - -一起