Questions & Answers about Sé la verdad porque conozco a tu familia.
Why do we use both sé and conozco here if they both mean "I know"?
In Spanish, there are two verbs for "to know". Saber (here as sé) is used for knowing facts, information, or how to do something. You use it here because you know a fact: la verdad (the truth). Conocer (here as conozco) is used for being familiar with people, places, or things. You use it here because you are acquainted with a group of people: tu familia.
Are sé and conozco regular verbs?
No, they both have irregular "I" (yo) forms. The verb saber becomes sé (don't forget the accent mark!), and conocer becomes conozco. For the other forms, they follow more normal conjugation patterns.
Why is there an a before tu familia?
This is called the "personal a." In Spanish, whenever the direct object of a verb is a person or a group of people (like familia), you must put the word a right before it. It doesn't translate to anything in English, but it is required in Spanish.
Why is it porque and not por qué?