Learn Danish: Er det rigtigt at du rejser i morgen? - Is it true that you are traveling tomorrow?

The base word for 'right' or 'true' is rigtig. Because it describes the word det (which is a neuter pronoun meaning 'it' in this sentence), you must add a -t to the end of the adjective to make it match.

Wait, doesn't at mean 'to'?

It can! The word at is used before verbs to mean 'to' (like at rejse for 'to travel'). However, it is also the word for 'that' when connecting two parts of a sentence, exactly as it is used here.

Why does the sentence use rejser instead of a future tense like 'will travel' or 'are traveling'?

Danish does not have an '-ing' form like English, and it is very common to simply use the present tense (rejser) to talk about future plans. This is especially true when the sentence already includes a future time word like i morgen.

What does i morgen literally translate to?

It literally means 'in morning', but it is the standard Danish phrase for 'tomorrow'. Be careful not to confuse it with om morgenen, which is how you say 'in the morning' when talking about a specific time of day.