Breakdown of Jag vet att han inte tål gluten, eftersom reaktionen alltid är farlig.
jag
I
vara
to be
han
he
alltid
always
inte
not
veta
to know (facts, information)
att
that
farlig
dangerous
eftersom
since, because
tåla
to tolerate
gluten
gluten
reaktionen
the reaction
Questions & Answers about Jag vet att han inte tål gluten, eftersom reaktionen alltid är farlig.
Why does alltid come before the verb är here?
This is the BIFF rule in action! The phrase starting with eftersom is a subordinate clause. In Swedish subordinate clauses, sentence adverbs like alltid (always) must come before the verb. If this were a normal main clause, it would be reaktionen är alltid farlig.
Is the BIFF rule happening anywhere else in this sentence?
Yes! The phrase att han inte tål gluten is also a subordinate clause. Here, the sentence adverb inte is placed before the verb tål (tolerates) for the exact same reason.
What is the infinitive form of tål?
The infinitive is att tåla (to tolerate, to stand, or to bear). It belongs to the group of verbs that end in a long vowel in their stem, so it simply takes an -r in the present tense, making it tål.
Can I use därför att instead of eftersom?
Yes, both mean 'because' and both introduce subordinate clauses, so the word order would stay exactly the same. Eftersom is often used when the reason is already known or for a slightly smoother flow, while därför att puts more focus on explaining a specific cause.
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