Synonyms to defective verb

auxiliary, abetting, accessory, accident, accidental, acolyte, addendum, addition, additional, adjunct, adjutant, adjuvant, adscititious, adventitious, agent, aid, aide, aide-de-camp, aider, aiding, alter ego, ancillary, another, appendage, appurtenance, appurtenant, ascititious, assistance, assistant, assisting, attendant, auxiliary verb, backing, best man, casual, circumstantial, coadjutant, coadjutor, coadjutress, coadjutrix, collateral, complementary, contingency, contingent, contributory, copula, deponent verb, deputy, executive officer, extra, farther, finite verb, fortuitous, fostering, fresh, further, girl Friday, happenstance, help, helper, helpful, helping, helpmate, helpmeet, impersonal verb, incidental, inessential, infinitive, instrumental, intransitive, intransitive verb, lieutenant, linking verb, man Friday, mere chance, ministerial, ministering, ministrant, modal auxiliary, more, neuter verb, new, nonessential, not-self, nurtural, nutricial, other, paranymph, paraprofessional, peripheral, plus, reserve, second, secondary, servant, serving, sideman, spare, subordinate, subserv