Chapter 4 - Loosening
Loosening it with is an action applying to two things.
Understand "loosen [something] with/using [something preferably held]" as loosening it with.
Understand "screw [something] with/using [something preferably held]" as loosening it with. [1]
Understand "turn [something] with/using [something preferably held]" as loosening it with.
Understand "unfasten [something] with/using [something preferably held]" as loosening it with.
Check loosening with:
say "[The second noun] [aren't] [if the second noun is plural-named]suitable tools[otherwise]a suitable tool[end if] for that." instead.
Does the player mean loosening something with the noun:
it is very unlikely.
Note
[1]. "unscrew" is a synonym to "screw" so using "screw" here gives us "unscrew" automatically.