x1 gives x2 (li) fucks about x3.
A smaller x2 means less caring. Use of vague numbers is obviously permitted. (Why not?) "Barely give a shit" (= "gleua li so'u") "Doesn't give a fuck" (= "gleua li no"). Numbers can be made to lujvo with this to create pseudo-words meaning "to give no fucks" (= "no zei gleua"). Of course, this word can be used positively (= "gleua li so'e") to mean something like "I care a great deal!"