However, you can add suffixes to "mature" to create different forms of the word:
* -ly: maturely (adverb) - in a mature manner
* -ness: maturity (noun) - the state of being mature
* -ing: maturing (verb) - the process of becoming mature
* -ed: matured (verb, past tense) - has become mature
* -ation: maturation (noun) - the process of becoming mature
These suffixes change the grammatical function of the word "mature".