We can change the grammatical category of a word by the use of prefixes and suffixes and some other techniques.

1. “Study Skills”
ENG-123
Lecture 19 (V2)
“Changing Parts of Speech”
By: Tariq Amin
Lecturer, Dept of English,
KUST

2. Outline
• Changing Parts of Speech
• Changes to Make Verbs
• Changes to Make Adjectives
• Changes to Make Adverbs
Course: Study Skills ENG-123 - Instructor: Tariq Amin, Lecturer, Dept of English, KUST - Email: tariqamin@kust.edu.pk
Topic: Changing Parts of Speech

3. Changes to Make Verbs
To change words into verbs, use any of the following prefixes or suffixes.
Course: Study Skills ENG-123 - Instructor: Tariq Amin, Lecturer, Dept of English, KUST - Email: tariqamin@kust.edu.pk
Topic: Changing Parts of Speech
Prefix Verb Form Suffix Verb Form
en- encourage -en Deepen
em- empower -ise/ize stabilize
re- renew -ate celebrate
im- imprison -ify terrify

4. Changes to Make Adjectives
To change words into adjectives, use any of the following suffixes.
Course: Study Skills ENG-123 - Instructor: Tariq Amin, Lecturer, Dept of English, KUST - Email: tariqamin@kust.edu.pk
Topic: Changing Parts of Speech
Suffix Adjective Form Suffix Adjective Form
- al directional - ate temperate
- ible sensible - id humid
- able laughable - ine alpine
- ous officious - ful helpful
- less priceless - like childlike
- ish stylish - ar polar

5. Changes to Make Adverbs
To make adverb forms, put the suffix “ly” at the end of the given word.
Course: Study Skills ENG-123 - Instructor: Tariq Amin, Lecturer, Dept of English, KUST - Email: tariqamin@kust.edu.pk
Topic: Changing Parts of Speech
Suffix Adjective Form
- ly loudly
-ly accurately

6. Examples Of Interchange Of Parts Of Speech
Course: Study Skills ENG-123 - Instructor: Tariq Amin, Lecturer, Dept of English, KUST - Email: tariqamin@kust.edu.pk
Topic: Changing Parts of Speech
- ize (verb) - ment
(noun)
- er, - or
(noun)
- Ing
(verb/adj)
- able, -ible
(adj)
achieve achievement achiever achieving achievable
manage management manager managing manageable
standard standardize
sympathy sympathize sympathizer sympathizing
fertile fertilize fertilizer fertilizing fertilizable

7. Changes to Make Adverbs
To make adverb forms, put the suffix ly at the end of the given word.
Course: Study Skills ENG-123 - Instructor: Tariq Amin, Lecturer, Dept of English, KUST - Email: tariqamin@kust.edu.pk
Topic: Changing Parts of Speech
-tion, -ation (noun) -ic (adj) - Ive (adj)
acid acidic
restore restoration restorative
mediate mediation mediative
cooperate cooperation cooperative
strategy Strategic

8. References
1. https://www.theclassroom.com/use-suffixes-change-parts-speech-8274904.html
2. https://study.com/academy/lesson/how-word-changes-indicate-parts-of-speech.html
Course: Study Skills ENG-123 - Instructor: Tariq Amin, Lecturer, Dept of English, KUST - Email: tariqamin@kust.edu.pk
Topic: Changing Parts of Speech

9. Thank You.....