I don't think it's good 和 I think it isn't good 意思一样吗?

I don't think it's good 和 I think it isn't good 意思一样吗?
I don't think it's good 和 I think it isn't good 意思一样吗?

I don't think it's good 和 I think it isn't good 意思一样吗?
意思一样 我不认为它好!我认为它不好!

第二种表达是错的，因为要用否定前移。即
I don't think it's good
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