Breakdown of Я не расслышал, то ли он сказал это в шутку, то ли всерьёз.
это
this / it is
не
not
он
he / it (for a masculine noun) / it (for a neuter noun)
я
I
Questions & Answers about Я не расслышал, то ли он сказал это в шутку, то ли всерьёз.
How does то ли ..., то ли ... differ from just using или ..., или ... here?
То ли ..., то ли ... implies uncertainty, doubt, or a lack of clear information. By using it instead of или, the speaker emphasizes their own confusion: they couldn't quite hear, so they are guessing between the two options. If you used или, it would sound like a simple statement of alternatives rather than expressing your own doubt.
Why use расслышал instead of the standard perfective услышал?
Расслышать specifically means to hear something clearly, to make out the words, or to catch what was said. Услышать just means to perceive a sound. Since the speaker heard the person speak but missed the nuance, не расслышал (didn't catch) is the exact right verb here.
Why is 'as a joke' translated as two words (в шутку) but 'seriously' is a single word (всерьёз)?
Both function as adverbs here, but they evolved differently in Russian spelling. В шутку is a prepositional phrase (the preposition в + the accusative noun шутка) that acts like an adverb. Всерьёз started the same way, but over time it fused into a single fixed adverb. They are very common opposites, so it helps to memorize them together as a pair.
Could I use the standard indirect question structure ли ..., или ... here?