C# how to get listbox to display the for loop

Develop a form C# to display the Fahrenheit temperature and corresponding Celsius temperature for Fahrenheit temperatures ranging from –40 to +40 degrees, at increments of 10. Use a for loop. The conversion formula is

Celsius = (Fahrenheit - 32) * 5/9

how would write the code to get the for loop to be displayed in the listbox?