| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] [adv] at | 1638 |
|
| 2 | while [adv] [prep] | 151 |
|
| 3 | while [adv] [prep] | 151 |
|
| 4 | while [adv] at | 35 |
|
| 5 | while [adv] at | 32 |
|
