I can't imagine what this is like to think before I have words to describe them. My current thought process is an inner monologue and I can't imagine how I'd think if I couldn't put words to my ideas immediately.
As for actions you probably don't think to yourself "I should kick the ball in 3.. 2.. 1.. now! with THIS amount of spin and THAT power" - you just kick it when it's appropriate. Inner monologue would be too slow and too imprecise to think about these things. The same mode of thinking works for other things too. For example bad habits are automatic - you don't need to think "I should alt-tab to browser and open hackernews" - it's one thought expressed without language.
Also, anecdotally, my inner monologue is sometimes behind my "real" thoughts. I can think faster than I can speak, even in my own head.
For example English requires articles. You can have a book or the book. You cannot just have book. In my native language we don't have articles. If I want to specify it's "a" book I can (with the word to the effect of "some"), if I want to specify it's "the" book I can (with the equivalent of "this" or "that"). But by default we don't care.
On the other hand every verb encodes gender in my language. So when author wrote in English "Somebody in the audience said >I was with you<" - the translator has to guess what was the gender of that person. Because "was" is a different word depending on the gender of that person :)
EDIT: I'm -> I was, because in present tense verbs can be the same :)