Which are the differences in meaning and usage between the two expressions "much too [something]" and the most common "too much [something]"? Are they completely interchangeable?
i.e.: "much too wise" vs "too much wise"
Too much modifies a noun and a verb, and much too modifies an adjective or adverb.
consider the following phrase:
"too" gives the adjective a negative meaning. Simply, we use "so", "very", and "too" + adjectives to make them seem stronger. This is while "so" gives the adjective a positive meaning and "too" a negative one. Now, "much" is for more emphasis, like when we say "too much expensive".
On the other hand, "much too" is different. "much" in such a case means "nearly". When one says, "much too expensive" it means "nearly too expensive" yet it is really not that expensive.