" The dog had played too much" should I think be considered.
It's accepted now.
"I think the dog had played very much" should also be accepted.
What about the dog had played a great deal??
Added! Many thanks! :)
"The dog had played so much." should also be accepted.
Why do you think so?
τόσο πολύ "so much" and πάρα πολύ "very much / too much" seem different to me.