Learn Danish: Knægten løb hjem fra skole. - The kid ran home from school.

While drengen is the standard, neutral word for the boy, knægten is more informal and colloquial. It translates best to the kid or the lad. It is often used affectionately, though depending on the context it can sometimes sound slightly old-fashioned or dismissive.

Why do we use hjem here instead of hjemme?

Danish distinguishes between movement towards a place and being stationary at a place. Because the kid is running towards his home, we use the motion adverb hjem. If he were already at his house running around inside it, you would use the location adverb hjemme.

Why is it fra skole without a definite article, rather than fra skolen?

Just like in English, Danish often drops the article for institutions like school, work, or church when referring to the general activity rather than a specific physical building. Saying fra skole means he was coming from his daily classes. If you said fra skolen, it would specifically emphasize leaving the physical school building.

Why doesn't the past tense verb løb have a regular ending like -ede or -te?

Løb is the past tense of at løbe (to run). It is a strong verb, meaning it forms the past tense by changing its internal vowel rather than adding a regular suffix. Its forms are løber (present), løb (past), and har løbet (present perfect).