Learn Swedish: Vi kan jobba utan att stressa. - We can work without stressing.

In Swedish, when you want to say "without doing [something]", you use the phrase utan att followed by an infinitive verb. You can't just use utan by itself before a verb. So "without stressing" translates literally to "without to stress" (utan att stressa).

English uses the "-ing" form ("stressing"). Why doesn't Swedish use a similar ending?

Swedish doesn't have a direct equivalent to the English "-ing" verb form (the gerund) when following prepositions. Instead, Swedish uses att plus the infinitive form of the verb. Whenever you want to express "by doing" or "without doing", expect to use genom att or utan att plus the infinitive.

Why is it jobba (infinitive) and not jobbar (present tense)?

Because it comes directly after the helper verb kan (can). Just like in English, modal verbs in Swedish are followed by the infinitive form of the main verb without an att in between. So it is kan jobba, never kan jobbar.

Could we use arbeta instead of jobba in this sentence?

Yes, absolutely! Vi kan arbeta utan att stressa means exactly the same thing. Jobba is just a bit more relaxed and very common in everyday spoken Swedish, while arbeta sounds slightly more formal.