What is the difference between inflectional affix and derivational affix?

Answer 1

(inflectional affixes)

easy examples for u:

the plural suffix (s) added to singular nouns{boy+s=boys} ,or

the past tense suffix (ed) added to a verb{clean+ed=cleaned} these are called

(inflectional affixes).

consider the following examples:

1.number in nouns: {s,es}(s , es) in the word {cat+s=cats} or {wish+es=wishes}

1. s add the suffix s if the base singualar form ends in a voicless sound such as {lips,books,cats}

2. \z\ add the suffix \z\ if the base ends in a voiced sound ;such as{boys,dogs}

3. \iz\ add the suffix \iz\ if the base ends in a sibilant ,such as {churches,wishes}.

Note:,sibilant sounds are {s,z,d3,3...etc}.2.tense in verb:the regular past tense of the verb is always associated with the presence of the past tense marker ''d''.

such as {smile+d=smiled} ,''ed'' {paint+ed=painted}. also ''ed'' is pronounced \d\ as in {robbed},

\id\{hated} , \t\ {liked}.

3.negating adjectives:other prefixes indicate the opposite meaning of the root word as i the following examples:

1.the prefix... (un)-: happy___unhappy,lucky___unlucky.

2.the prifixes... (in & im)possible___impossible,direct___indirect.

3.the prifixes... (il & ir) literate __illiterate, regular__irregular.

Answer 2

Inflectional affixes modify the grammatical function of a word, such as its tense, number, or aspect, without changing its overall meaning or category. Derivational affixes, on the other hand, change the meaning or category of the word, creating a new word with a different root.