As well as - এবং Along with - সাথে ...
As well as - এবং
Along with - সাথে
Accompanied by –সঙ্গে
Structure: এগুলো যখন দুটি subject এর সাথে ব্যবহৃত হয় তখন প্রথম subject অনুযায়ী verb নির্ধারিত হয় ।
Example: Rafiq as well I am/is/are
going to Chittagong tomorrow (Incorrect).
Rafiq as well I is going to Chittagong tomorrow
(Correct).
Example: My father along with his colleagues was/were invited to the party (Inc)
My father along with his colleagues was invited to the party (Cor)
Example: Ruma accompanied by her parents go/goes to school everyday (Inc)
Ruma accompanied by her parents goes
to school everyday (Cor).
Example: He as well as his friends (be) selfish (Inc)
He as well as his friends is selfish (Cor). 
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