Do you have an internal monologue?

I don't. I seem to think at a more abstract, pre-verbal level rather than through an internal voice.

Some studies suggest that frequent internal monologue may occur in roughly 30–50% of people [1], but the research is based on relatively small samples.

[1] https://www.psychologytoday.com/us/blog/intersections/202304...

I have different modes depending on what I'm doing, but I think usually I'm reasoning non-verbally