Part of speech: verb
Verb type: strong verb (3)
Present participle: usbliggwands
1. to beat, thrash; 2. to whip, scourge
[← us- pref + bliggwan v “to hit, beat”]
usbluggwun - 3 pers, pl, p, indicat - Mrk. XII, 3
usblaggw - 3 pers, sing, p, indicat - Jhn. XIX, 1
usbliggwands - pres.p.- Mrk. XII, 5; XV, 15; Luk. XVIII, 33; XX, 10
usbluggwans - p.p. - Cor. II, XI, 25

In the combination sonant + occlusive, r, l, m, n were initially syllable-forming sounds, but already in the Common Germanic period, before r, l, m, n there began to appear the so-called epenthetic (inserted) vowel, which in Gothic always produced [-u-]

III class infinitive preterite singular preterite plural past participle
normal grade normal grade zero grade zero grade
i/ă -i- -a- zero zero
additional element of vowel gradation for this class is sonant + any consonant, e.g. -nd-, -rþ-, etc. i + nd = ind a + nd = and epenthetic u + nd = und epenthetic u + nd = und
to bind; to tie bindan band bundum bundans
i + rþ = airþ [-ɛ-] a + rþ = arþ epenthetic au [-o-] + rþ = aurþ [-orþ-] epenthetic au [-o-] + rþ = aurþ [-orþ-]
to become, turn into something wairþan
warþ waúrþum

See the complete paradigm of the conjugation of strong verbs