complainon Basic wordsalso onCEFR Intermediate (B1)? CEFR Advanced (C1)? Band 2 (BND2)? 投诉,抱怨,控诉 complained complained(verb) 投诉(complain的过去式和过去分词),抱怨,诉苦 complaining complaining(verb) 投诉(complain的现在分词),抱怨,诉苦 complains complains(verb) 投诉(complain的第三人称单数),抱怨,诉苦 complaints complaints(noun) 投诉,抱怨(complaint的名词复数) complain complain(verb) 投诉,抱怨,控诉 complaint complaint(noun) 委屈,抱怨,控诉 Forms verbnoun complained complaints complaining complaint complains complain