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FORM: Negative
| Tense | Formula | Example |
| Present Simple | am/ is/ are + NOT + V3 | The room is not cleaned once a week. |
| Present Continuous | am/ is/ are + NOT + being + V3 | The room is not being cleaned now. |
| Present Perfect | have/ has + NOT + been + V3 | The room has not been cleaned twice. |
| Past Simple | was/ were + NOT + V3 | The room was not cleaned yesterday. |
| Past Continuous | was/ were + NOT + being + V3 | The room was not being cleaned when my mum came. |
| Past Perfect | had + NOT + been + V3 | The room had not been cleaned by 2 o'clock. |
| Future Simple | will + NOT + be + V3 | The room will not be cleaned tomorrow. |
| Modals | modal + NOT + be + V3 | The room should not be cleaned. |
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