If Is Blank Syntax

Can the If(ISBLANK(cell) syntax be used multiple times for a function?  What I want my worksheet to do is have one cell return data if multiple cells have data inputted into them, if not then return the result as blank.  For example: Cell D33=if(isblank(d29),"","V"),if(isblank(d30),"","1st"),if(isblank(d31),"","2nd"),if(isblank(d32),"","F").  I am getting a "Value" error returned so I am thinking that the reason is because you can't have a string of functions with the IF IS BLANK syntax....