oneThis plural form is used for numbers like: 1
%{count} project
otherThis plural form is used for numbers like: everything else
%{count} projects
%{count} proyecto
%{count} proyectos
%{count} project
%{count} projects
%{count} project
%{count} projects
%{count} project
%{count} projects
%{count} project
%{count} projects
%{count} project
%{count} projects
%{count} proyecto
%{count} proyectos
%{count} proyecto
%{count} proyectos