Opinion Frame
According to whom?
Meaning
A frame that marks a statement as someone's thought, belief, feeling, judgment, claim, or perspective.
How to spot it
Find who thinks, believes, feels, says, or claims the idea.
Examples
think|believe|feel|in my opinion|according to
I think that|according to Anna|it seems to me
I think this is a good idea.
Visual guide
Opinion frame [who thinks?] + [idea] I think + this is good according to Anna + idea = someone's view, not bare fact
Compare source marking: Bare fact: This is a good idea. Opinion: I think it is. Report: Anna says it is. Feeling: It seems to me. Some langs use particles/evidentials.
Language View
In your native language
English uses opinion frames such as I think, I believe, in my view, and it seems to me.
I think this is useful.
I think = opinion frame
In your learning language
Opinion frames are frequent and interact strongly with the subjunctive under negation or doubt.
Creo que tiene razón. No creo que tenga razón.
I think he/she is right. I do not think he/she is right.
Learners often miss the subjunctive after no creo que.
Same block, different coding
Both languages use this block strongly, but they signal it differently. Focus on form changes, not only meaning.