I have a brief question on verb conjugation.
I'm aware of the standard ones like, for example, the verb trinken conjugates to ich trinke du trinkst er/sie/es trinkt
But when referring to a general person, such as a random boy, it is
Der Junge trinken Wasser
Here trinket is conjugated to trinken as opposed to trinket etc. Is there a specific rule for this type of conjugation?