The formation variation between the infinitive and the noun In the book "Alnihaya fi Gharib alhadith wal'athar" A semantic lexicological study

 
     The linguists, in particular the morphologists were divided into defining the noun when referring to the infinitive to three doctrines:
     First: It is seen that many nouns are nouns of infinitives, because they contain the letters of the infinitive. Therefore, this doctrine does not see any difference between the infinitive and the noun in their implications of the action.
     Second: sees that the source indicates the event and the self, while the source name indicates the event only.
     The third: sees that the origin of these nouns should not be implying of infinitive nouns, but of the action introduced to imply of the noun and could not be omitted without compensation in addition to an alteration in the Arabic vowel marks.
     It turns out that there are forms in Arabic that is likely to be an infinitive or a noun, but what sets the semantics is the difference in vowel marks, the difference that necessarily results in a variation in the formula leading to a different meaning.