Fieri - to be made, become

Fieri

Fio, factus sum, fieri.
Meaning: to be made, become.
Forms: the long -i- of the present stem is preserved before vowels also; before -re and -ri there appears the additonal vowel -e-, cf. fieret, fieri; the forms of the present stem are on the pattern of the IV conjugation. The forms of the present stem are of active voice, but with passive meaning; for this reason fieri is traditionally classified as a neutropassive verb.
Usage: fieri is used as passive of facere to do and the compound tenses of facere are used as compound tenses of fieri; the derivatives of facere with preserved -a- (such as calefacere to make warm, patefacere to open up) usually form their passive with fieri:

calefacere : calefieri to be made warm
patefacere : patefieri to be opened up

		Present	Imperfect	Future
		*I n d i c a t i v e*
Sg.	1. 2. 3.	fio fis fit	fiêbam fiêbas fiêbat	fiam fias fiat
Pl.	1. 2. 3.	fimus fitis fiunt	fiebâmus fiebâtis fiebant	fiêmus fiêtis fient
		*S u b j u n c t i v e*
Sg.	1. 2. 3.	fiam fias fiat	fierem fieres fieret	-- -- --
Pl.	1. 2. 3.	fiâmus fiâtis fiant	fierêmus fierêtis fierent	-- -- --
		*I m p e r a t i v e*
Sg.	2.	fi!	--	--
Pl.	2.	fite!	--	--
		Perfect	Pluperfect	Future Perfect
		*I n d i c a t i v e*
Sg.	1. 2. 3.	factus, a, um sum factus, a, um es factus, a, um est	factus, a, um eram factus, a, um eras factus, a, um erat	factus, a, um ero factus, a, um eris factus, a, um erit
Pl.	1. 2. 3.	facti, ae, a sumus facti, ae, a estis facti, ae, a sunt	facti, ae, a eramus facti, ae, a eratis facti, ae, a erant	facti, ae, a erimus facti, ae, a eritis facti, ae, a erunt
		*S u b j u n c t i v e*
Sg.	1. 2. 3.	factus, a, um sim factus, a, um sis factus, a, um sit	factus, a, um essem factus, a, um esses factus, a, um esset	-- -- --
Pl.	1. 2. 3.	facti, ae, a simus facti, ae, a sitis facti, ae, a sint	facti, ae, a essemus facti, ae, a essetis facti, ae, a essent	-- -- --
		I N F I N I T E V E R B A L F O R M S
		Present	Perfect	Future Perfect
		*I n f i n i t i ve*
		fieri	factus, a, um esse	factum iri factûrus, a, um esse fore
		*P a r t i c i p l e*
		--	factus, a, um	factûrus, a, um

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