How do you write ing form?

Related questions

1. What is formula of simple present tense?
2. What is the form of present continuous?
3. How do you present perfect tense?
4. What is the structure of present perfect?
5. What is the difference between present participle and present continuous?

Tags

1. #learning
2. #challenging
3. #verbs
4. #formed
5. #infinitive
6. #regular
7. #participle
8. #correctly
9. #adding
10. #forms