โครงสร้าง Tense
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)
Future 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)
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