What keys on the keyboard that comes in pairs?

On a standard keyboard, keys that come in pairs include the "Shift" keys, which are located on both the left and right sides, allowing for capitalization and access to secondary functions. Additionally, there are two "Enter" keys on many keyboards, typically found on the main section and the numeric keypad. Other paired keys include the "Ctrl" (Control) and "Alt" (Alternate) keys, which also appear on both sides of the keyboard.