Let me start by saying 'I don't think this phrase is used correctly in the English language.' One day I when using the phrase 'I don't think...' it did not sit with me well. It still doesn't sit well with me today. I always wonder how can we 'don't think' something. 'I don't think that is the right way' seems almost like an oxymoron to me but would it sound silly to say 'I think that is not the right way', or 'I'm not sure that is the correct way', wouldn't either be the correct way? I hear this phrase being used so much that it boggles my mind trying to actually figure it out. From a personal standpoint, I have avoided using this phrase when I'm talking to someone. Another thing that I noticed when it's used there is always an agreeing response either by nodding or saying yes, you're right. What are your thoughts or is this too mind-boggling to you as well?