No | Pattern | Freq | Relations |
---|---|---|---|
1 | [v-ing] at a time [adv] the | 7 |
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2 | [v-ing] at a time when the | 7 |
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3 | [v-ing] at a time [Wh adv] the | 7 |
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4 | [v-ing] at a time when the | 7 |
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