In English, there are 12 tenses. These tenses are divided into three main categories: Past, Present, and Future, each with four subcategories. The subcategories are Simple, Continuous (Progressive), Perfect, and Perfect Continuous (Progressive).
Here's how the given sentences can be written in all 12 tenses:
1. **Simple Present:**
- I visit my parents.
2. **Present Continuous:**
- I am visiting my parents.
3. **Present Perfect:**
- I have visited my parents.
4. **Present Perfect Continuous:**
- I have been visiting my parents.
5. **Simple Past:**
- I visited my parents.
6. **Past Continuous:**
- I was visiting my parents.
7. **Past Perfect:**
- I had visited my parents.
8. **Past Perfect Continuous:**
- I had been visiting my parents.
9. **Simple Future:**
- I will visit my parents.
10. **Future Continuous:**
- I will be visiting my parents.
11. **Future Perfect:**
- I will have visited my parents.
12. **Future Perfect Continuous:**
- I will have been visiting my parents.
By using these different tenses, you can convey various shades of meaning and time relationships in English sentences.
