I'm trying to write a SQL query that uses CASE and STRING together and getting an error. 
This is what I'm trying to work on. Any help is greatly appreciated. 
I tried adding in STRING function as well but also does not work. 

```
SELECT Case
         when sn.1_code =  1 then 'Attended  -- ' ,  
                                  sn.mult_1 , 
                                  , 'and'  ,  
                                  sn.dict_2 ,  
                                  ' also acted with ' ,  
                                  sn.dict_3 , 
                                  '.' , 
         when sn.1_code =  3 then 'left because ' ,
                                  sn.mult_2 ,
                                  '.' ,
         when sn.dict_1 =  2 then 'Went home' ,
         when sn.dict_1 = 24 then 'Canceled' AS 'Attendance'
FROM db.sn

```