Questions & Answers about Ik ben boos, want ik ben te laat.
How does this sentence relate to the lesson about waarom (why)?
The word want means "because". You use it to explain your reasons and answer questions that start with waarom (why). If someone asks Waarom ben je boos? (Why are you angry?), you can answer with this exact sentence.
Why is the word order in the second half exactly the same as the first half?
The word want (because) is very friendly to beginners! It simply glues two normal sentences together without changing their structure. The second part keeps the standard order: ik (subject) followed by ben (verb). Later you will learn another word for "because" that pushes the verb to the end of the sentence, but want keeps things simple.
I see the word te here. Doesn't that usually mean "to"?
It can, but when te is placed directly in front of a describing word (an adjective) like laat (late), it translates to "too". So te laat means "too late".
Why is the verb ben used twice in this sentence?
The verb ben (am) belongs to the subject ik (I). Because both the first and second half of this sentence have ik as the subject, they both use the matching verb form ben. If the second part was about someone else, the verb would change. For example: Ik ben boos, want hij is te laat (I am angry, because he is too late).