| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [Wh adv] [adv] [pron] | 447 |
|
| 2 | [prep] [adv] often [pron] | 16 |
|
| 3 | [prep] [Wh adv] often [pron] | 15 |
|
