| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh adv] it [be] [adv] | 670 |
|
| 2 | [Wh adv] it [be] [adv] | 498 |
|
| 3 | [adv] it [be] often | 43 |
|
| 4 | [Wh adv] [pron] [be] often | 18 |
|
| 5 | [Wh adv] it [be] often | 8 |
|
