Too Many If's - Help to simplify

This is what I am trying to do
if F1="Yes", iF K1 ="Q1" and IF B1 is blank then "yes", if K1="Q2" and IF C2 is blank then "Yes", If K1="Q3" and IF D2 is blank then "Yes", If K1="Q4" and IF E2 is blank then "Yes"

Basically colomns Q1,Q2,Q3,Q4, LIVE and Pending
Depending on a value in K1 (which is a drop down selector consisting of Q1-Q4) I want it to check that its live "Yes" in F1 then look for the the correct period and tell me if any data is missing - if it is then give me a Yes.

Is there a simpiler way then using all the IF's

Thanks