s, e, f, n, p, c, m, r, t, i are letters that make 'imperfect tense'
ER, RF, pe, te, EC, MP, en, perfect tense, SE, perfect, imperfect, ten, tense, ECT, CT, imp, Er, Fe, Rf, Se, Te are words within 'imperfect tense'
1 possible definitions for 'imperfect tense'
Under this definition, imperfect tense is a noun and has the following properties:
progressive, progressive tense, imperfect, continuous tense have the same meaning as 'imperfect tense'
'imperfect tense' can be a type of tense.
future progressive tense, present progressive, present progressive tense, past progressive, past progressive tense, future progressive are types of 'imperfect tense'.