Here's why:
* Passive voice requires a transitive verb. A transitive verb is a verb that takes a direct object. The verb "tastes" is intransitive, meaning it doesn't take a direct object. It describes a state or action, not something that is acted upon.
Example of passive voice with a transitive verb:
* Active: The chef cooked the meal.
* Passive: The meal was cooked by the chef.
To make "tastes" into a passive voice sentence, you would need to rephrase it using a transitive verb.
For example:
* Active: The food tastes delicious.
* Passive: The food is considered delicious. (using the transitive verb "consider")