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To form simple past negatives of irregular verbs, use the verb in its base form (no changes) and add didn’t. Remember: don’t make any changes to the main verb. Look at these examples from the dialogue.
| Correct Examples: |
Not |
| I didn’t pay it. |
I didn’t paid it. |
| I didn’t think you’d need a timer. |
I didn’t thought you’d need a timer. |
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