| 1. Present simple tense | 2. Present continuous |
| S + V. to be + V3 | S + is, am, are + being + V3 |
| 3. Past simple | 4. Past continuous |
| S + was , were + V3 | S + was , were + being + V3 |
| 5. Present perfect | 6. Past perfect |
| S + has, have + been + V3 | S + had + been + V3 |
| 7. Future simple | 8. Future continuous |
| S + will + be + V3 | S + will be + being + V3 |
| 9. Modal verb | 10. Modal perfect |
| S + modal verb + be + V3 | S + model verb + has/have + been + V3 |
passive voice : caused by จากข่าวภูเขาไฟตองกา
Present simple
Present Simple Continuous
Passive Voice : V3 + by
บทความ Verb to be
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