oneThis plural form is used for numbers like: 1
%{count} collaborator
otherThis plural form is used for numbers like: everything else
%{count} collaborators
%{count} collaborator
%{count} collaborators
%{count} collaborator
%{count} collaborators
%{count} collaborator
%{count} collaborators
%{count} collaborator
%{count} collaborators
%{count} collaborator
%{count} collaborators