| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [pers pn] [prep] [adv] a while | 7 |
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| 2 | [prep] [pers pn] [prep] [adv] a while | 7 |
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(1) [pers pn] [prep] [adv] a while Next page
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