Would it be okay to write or say a sentence like this, and would it be grammatically correct?
- He went to Aruba, I thought.
- You're wrong, I think.
- These look like deer tracks, I would say.
- He was mad, it seemed.
I know that you typically wouldn't write a sentence like this, but I find myself speaking like this sometimes, and I'm wondering if it's not okay to say or write it like this.