What Are Inflectional Morphemes?

Inflectional morphemes are one kind of bound that never change the grammatically it is used to show if a word is plural or singular,past tense or not, comparative or possessive for example: Both 'old' and 'older' are adjective
another kind of bound, it is derivational morphemes, which change the grammatically of a word. For example: Verb 'teach' becomes noun if we add -er, 'teacher'

It is a bound morpheme that do not change the meaning of a word,for example the s in the word dogs.the s can alter the gramatic state of the root

Inflectional morphemes are bound morphemes which require a host...