What Permission Required To DROP TABLE ?

Hi,
I would execute the following query to allow a user to create table

USE dbname
GRANT CREATE TABLE TO username

but it doesnt let me execute the following query
GRANT DROP TABLE TO username

I am wondering if there is a way to do this.

I know db_ddladmin does that. But I dont want to assign the whole role or schema to do that. I want specific privilege

According to SQL Server documentation, we need CONTROL permission to do this so I tried following query

GRANT CONTROL TO username

and

GRANT CONTROL ON tablename TO username

neither of them helped..

Please tell me what permission do I require to DROP a table.

Thanks,