โครงสร้างของ Tense ทั้ง 12

Present Tense

1. Present Simple (S. + V.1)
2. Present Continuous (S. + is/am/are + V.ing)
3. Present Perfect (S. + has/have + V.3)
   
4. Present Perfect Continuous (S. + has/have been + V.ing)

Past Tense

1. Past Simple (S. + V.2)
2. Past Continuous (S. + was/were + V.ing)
3. Past Perfect (S. + had + V.3)
4. Past Perfect Continuous (S. + had been + V.ing)

Futere Tense

1. Future Simple (S. + will/shall + V.1)
2. Future Continuous (S. + will/shall be + V.ing)
3. Future Perfect (S. + will have + V.3)
4. Future Perfect Continuous (S. + will/shall have been + V.ing)