It looks like you're working on a word classification task based on suffixes. Here are examples of words that typically fit in each category:
Words Missing the Suffix -ment
- Develop (development)
- Enjoy (enjoyment)
- Achieve (achievement)
- Arrive (arrival)
Words Missing the Suffix -able
- Read (readable)
- Edit (editable)
- Depend (dependable)
- Understand (understandable)
If you have specific words you'd like me to categorize, please list them and I can help you further!