Learn Swedish: Jag är nervös inför att ringa kundservicen. - I am nervous about calling customer service.

In English, prepositions are followed by an -ing word (a gerund), like "about calling". Swedish doesn't use gerunds this way. Instead, when a preposition is followed by an action, Swedish uses the preposition plus att and the infinitive verb. So, "about calling" naturally becomes inför att ringa.

Why is the preposition inför used here instead of om for "about"?

While om is the standard translation for "about", inför specifically implies "ahead of" or "facing" an upcoming event. When you are nervous about an action you are about to take, Swedish typically pairs nervös with inför. You are nervous facing the prospect of making the call.

Why is kundservicen in the definite form when the English translation lacks "the"?

In English, we often treat "customer service" as an abstract concept. Swedish prefers the definite form (kundservicen) when referring to specific departments, institutions, or societal functions you interact with, much like how we say "the police" or "the bank" in English.

Could I use the word kundtjänst in this sentence instead?

Absolutely. Kundtjänsten and kundservicen mean the exact same thing and are highly interchangeable. Kundtjänst is a native Swedish compound, while kundservice uses an English loanword, but both are fully accepted and extremely common in everyday Swedish.