grammatical number - “Everybody goes crazy”. Is the sentence correct?

What kind of verb should be placed after 'Everybody' - singular or plural?

Is it necessary to place 's/es' after a verb?

For example, which of the following sentences is correct?

1. 
   

   "Everybody goes crazy"

   
   


2. 
   

   "Everybody go crazy"

   
   

Answer

Everybody is singular, therefore it takes singular verb forms, and "everybody goes crazy" is correct. "Everybody go crazy" would only be correct for a command, as the third-person singular imperative form of "go" is "go".