Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_43006 ( "Pos." text, "Nationality" text, "Previous team" text, "NBA years [a ]" real, "Career with the franchise [b ]" text )

### Question ###
What is the previous team of the United States player who had 2 NBA years and played the F position?

### Accurate SQL ###

SELECT "Previous team" FROM table_43006 WHERE "Nationality" = 'united states' AND "NBA years [a ]" = '2' AND "Pos." = 'f'