grind - English-Spanish Dictionary - WordReference
Inflections of 'grind' (v): (⇒ conjugate) grinds v 3rd person singular grinding v pres p verb, present participle: -ing verb used descriptively or to form progressive verb--for example, "a singing ," "It is singing." ground v past verb, past simple: Past tense--for example, "He saw the man." "She laughed." ground v past p verb, past participle: Verb form used descriptively or to form ...