If I say, "The cat ate the fish," then that's in the active voice and the past simple tense (I think).
If, however, I say, "The fish was eaten by the cat," then that's in the passive voice, but I have been told that the participle can't be said to be in the past tense.
Is this true? If so, why? I know it's not a true verb, but it is a "past" participle, so how can it not be said to be in the "past" tense? There's a present participle, so don't present and past participles differ from each other in terms of tense? I am happy to have it confirmed that I'm wrong - but I would at least like to understand why!
Thanks in advance for any assistance.