Questions & Answers about Pomo oli niin raivostunut, että me tärisimme.
How exactly does the niin ... että structure work in this sentence?
The structure niin [adjective/adverb], että [clause] is the exact equivalent of the English "so [adjective/adverb] that [clause]". Here, niin amplifies the adjective raivostunut, and että introduces the consequence clause me tärisimme.
Why is there a comma before että? We wouldn't always use a comma before "that" in English.
Finnish punctuation rules are very strict about clauses. Because että me tärisimme is a subordinate clause with its own subject (me) and conjugated verb (tärisimme), you must separate it from the main clause with a comma. This is a hard rule before almost all että clauses.
Raivostunut translates to "furious", but isn't that a verb form?
Yes, raivostunut is the past active participle (the NUT participle) of the verb raivostua (to become infuriated/enraged). Like many participles in Finnish, it is commonly used as a regular adjective. It literally means "having become infuriated", which translates smoothly to "furious".
What is the basic dictionary form of the verb tärisimme?