frozen blueberries kept thawed

I strongly believe it's no good any more.

Update after hearing some comments [2nd update]

When u see liquid in the bag, it means the temp is usually above zero C which means it isn't the ideal temp for frozen berries.

I think it's usually quite ok to keep in the fridge for a few days, but not weeks

[3rd update] I am sorry for whatever confused I caused and I removed the comments about liquid in my previous answer to avoid confusion when people see this post in the future. Anyway, I found a box of forzen berries and here is what the pack suggests.

Please don't eat the berries if they are in the fridge for more than a few days