Get Specify Date by using GETDATE() in MS SQL

My requirement is to get the 1st date of the year. I'm using below command line to fulfill this task.
SELECT CONVERT(VARCHAR,YEAR(GETDATE())-1)+'/01/01'  

When it become the last day of the year, I can change the query like this.
SELECT CONVERT(VARCHAR,YEAR(GETDATE())-1)+'/12/01' 


Then I want the 1st February in this year. It can be taken by using
SELECT CONVERT(VARCHAR,YEAR(GETDATE())-1)+'/02/01'  

I believe this command will help you to cater your various requirements.