Learn German: Schmeckt dir die Schokolade? - Does the chocolate taste good to you?

The verb schmecken (to taste) is a special verb that always requires the Dative case for the person experiencing the taste. Because of this, the basic word du (you) changes to its Dative form, dir (to you).

Why is the verb schmeckt (he/she/it tastes) instead of schmeckst (you taste)?

Because dir (you) is not the subject! In German, the food being tasted (die Schokolade) is the subject. The sentence literally asks 'Tastes the chocolate to you?'. Since the chocolate is a third-person noun, we use the matching verb form schmeckt.

The English translation says 'taste good', but where is the word for 'good' in German?

When you use schmecken with a person in the Dative case, it automatically implies that the food tastes good. You don't need to add the German word for good (gut). If it tasted bad, you would add a word like nicht (not) or schlecht (bad).

Why does the sentence start with the verb Schmeckt?

This is a yes/no question. In German, you form yes/no questions by simply moving the conjugated verb to the very front of the sentence. While English uses helping verbs like 'Does' to ask a question, German just puts the main verb first.