I'm not really conscious of the distinction, unless you're talking about outright auditory things like rehearsing a speech in my head. The overwhelming majority of my thinking is in a format where I'm thinking in terms of concepts that I have a word for, but probably not consciously using the word until I start thinking about what I'm thinking about. Do you have a precise definition of "verbal"? But whether you call it verbal or not, it feels like it's all the same thing.
I don't really have good definitions at this point, but in my head the distinction between verbal and nonverbal thinking is a matter of order. When I'm thinking nonverbally, my brain addresses the concepts I'm thinking about and the way they relate to each other, then puts them to words. When I'm thinking verbally, my brain comes up with the relevant word first, then pulls up the concept. It's not binary; I tend to put it on a spectrum, but one that has a definite tipping point. Kinda like a number line: it's ordered and continuous, but at some point you cross zero and switch from positive to negative. Does that even make sense?
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