why is here når istead of da?
Because it refers to a recurring event.
Present and recurring events: when -> når
Past events: when -> da (or når in spoken Norwegian)
so it's about several times he helped? Is there a way to distinguish it in the past? or using da/når IS the distinguisher itself?
'da'/'når' is the distinguisher here, but it would often by implied by the context. Had it been 'da' instead it would've been a one-time event.
Got it, thank you:)
"He holp me when it yold."
Archaic forms but technically correct, both verbs became weak in modern English (holp>helped, yold>yielded).
They're archaic forms but technically correct show the comparison with Norwegian. They have now become weak verbs; holp>helped, yold>yielded.
is 'h' before 'j' silent?
It's like a Y with a heavy breathing, think of pronouncing Sh, but not as strong.
Yes, 'h' before 'j' is silent in Norwegian. So it is just pronounced as if it were a 'j'.