Pola dari 1. Simple Past Tense 2. Simple Present Tense 3. Perfect Present Tense

1. (+) S + V2
(-) S + did + not + V1
(?) Did + S + V1?

2. (+) S + V1 (s/es)
(-) S + do/deos + not + V1
(?) Do/Does + S + V1?

3. (+) S + have/has + V3
(-) S + have/has + not + V3
(?) Have/has + s + V3?

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