to Old Swedish inflection

In most forms the copula verb vesa/vera looks like a normal class 5 strong verb, but its present tense forms are made from a completely different stem. Since the english copula verb also behaves like that, this needs no further explanation.

infinitive	preterite		perfect participle
	sing.	plur.
vesa/vera	vas/var	váru	verit

... In the following tables, both older (left) and younger (right) forms are given:			indicative				subjunctive/optative
	sing.	1	em	er		1	sé	< sjá
		2	ert	< est		2	sér
		3	er	< es		3	sé
	plur.	1	erum			1	séum	< sém
		2	eruð			2	séuð	< séð
		3	eru			3	séu	< sé

		indicative				subjunctive/optative		Bla bla bla blaha bla bla blablabla bla bla bl.a. bla bla
sing.	1	var	< vas		1	væra
	2	vart	< vast		2	værir
	3	var	< vas		3	væri
plur.	1	várum			1	værim
	2	váruð			2	værið
	3	váru			3	væri