I have a tendency to place the phrase I suppose at the end of a sentence. It sounds alright to me. But when I want to write the expression down in words, how should I write it so that I won't violate the syntax of English?
This is a question regarding punctuation, I suppose.
This is a question regarding punctuation I suppose.
This is a question regarding punctuation. I suppose.
This is a question regarding punctuation, I suppose.
Or is placing the phrase I suppose at the end of a sentence considered a bad habit? Sometimes I do the same to phrases like I assume, I believe, I guess too.