en knuckling down (v)
― FormOf ⟶
Weight: 1.0
en knuckle down Source: English Wiktionary
en knuckles down (v)
― FormOf ⟶
Weight: 1.0
en knuckle down Source: English Wiktionary
en knuckled down (v)
― FormOf ⟶
Weight: 1.0
en knuckle down Source: English Wiktionary