Inflection is a process to form a word by added Inflectional affixes and doesn't change the meaning of word. For examples
1. students
this word from "Student" + affix "s" just to explain that is plural. The meaning of student = siswa, students = siswa-siswa
2. crying
this word from "cry" + affix "ing" just to explain that is past participle. the meaning cry = menangis , crying = menangis
3. danced
this word from "dance" + affix "ed" just to explain that is past tense. The meaning dance = menari, danced "menari"
4. listened
this word from "listen" = affix "ed" just to explain that is past tense. the meaning listen = mendengarkan, listened = mendengarkan
Derivation is process adding Derivational suffixes to a word that change the meaning and often the class word too. At first we must know the meaning is different or not after adding derivational suffixes. If the meaning is difference so this is DERIVATION PROCESS. If the meaning is still same, we must to know about the class of word after adding derivational suffixes still same or not. When the adding derivational suffixes change the class word so that is Derivation proess.
For examples
1. Impossible
this word from "possible" + preffix "Im". Possible is adjective and Impossible is adjective too but the meaning is difference. Possible = mungkin, Impossible = tidak mungkin. Adding derivational suffixes "Im" usually change to negative meaning.
2. Careless
this word from "care" + affix "less". the meaning of care = peduli, careless = ceroboh. Care is a verb in class of word, and careless is adjective in class of word.
3. Foolish
this word from "fool" + affix "ish". the meaning of fool is menipu and foolish is bodoh. Fool is a noun in class of word and foolish is adjective.
#DERIVATON is the PROCESS and DERIVATIONAL is the type SUFFIXES
#INFLECTION is the PROCESS and INFLECTIONAL is the typle SUFFIXES
