What is the plural of the word "belief"?
Not only non natives, even native speakers (especially the Americans) still could be found making a mistake on this one. English is such a tricky lingo, eh?
Just because the plural of "leaf" is "leaves", you cannot go on turning all the Fs into -ves!
The plural of "belief" is "beliefs", in case you have not known. A hell lot simpler, eh? Just add an S.