My teacher teaches me that if one puts an - ing to the end of a verb you will get the gerund of the verb which has the function as a noun. Example:
mix-mixing,
understand-understanding.
But there is also another form noun to the relative verb. Example:
mix-mixture.
Both mixture and mixing have the noun meaning.
I want to know does every verb have another noun besides gerund. What is the difference between them? Can they be used instead of each other?