Letters that make pluperfect tense
s, e, f, l, n, p, c, r, t, u are letters that make 'pluperfect tense'
Words within pluperfect tense
ER, RF, pe, te, EC, en, perfect tense, SE, perfect, up, pluperfect, ten, tense, ECT, CT, Er, Fe, Lu, Rf, Se, Te are words within 'pluperfect tense'