eating habits 为什么habit后面加S

have a eating habits habit后面要不要加s You need to have healthy eating habits这里的habit后面为什么要加s Shi has good eating habits.为什么eat要加ing.为什么habit要加s? My eating habits 为什么eat要加ing habit要加s?🙀 my eating habits are pretty good为什么habit要加s? my habit,eating habits Eating habits?还是 eating habit Good eating habits are very impovtant为什么habits要加s habit习惯一词前动词加ing不?如eating habits,playing habit Mike's eating habits are pretty good eating habit 是饮食习惯 i have an eating habit/ eating habits 选哪个 my eating habits is pretty good.eat为什么加ing?