Breakdown of Letandet i ångan blev det allra svåraste.
i
in
svår
difficult
det
the (with ett-words)
bli
to become
Questions & Answers about Letandet i ångan blev det allra svåraste.
How is the noun letandet formed, and why does it end in -t?
Letandet comes from the present participle of the verb leta (to search). By treating the participle letande as a neuter noun (an ett-word), it can take the definite suffix -t to mean "the searching". This is a common way to turn an ongoing or continuous action into a noun.
The verb leta is almost always followed by efter. Why is efter missing here?
Because the sentence focuses entirely on the act of searching itself and its location (i ångan), rather than what is being searched for. If you wanted to specify the object being sought, you would add the preposition back in: letandet efter nycklarna (the searching for the keys).
Why does the sentence use det before allra svåraste even though the noun is at the beginning of the sentence?
Det refers back to the neuter noun letandet. In Swedish, when an adjective is in the definite superlative form (the hardest), it requires the independent article den, det, or de before it, even if it stands as a predicative adjective after a verb like blev. Because letandet is an ett-word, we use det.
What exactly does add to the phrase ?