| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [det] it is [adv] | 102 |
|
| 2 | [det] it is [adv] | 78 |
|
| 3 | [adj] it is often | 10 |
|
| 4 | [det] [pron] is often | 7 |
|
| 5 | [det] it [be] often | 7 |
|
| 6 | [det] it be often | 7 |
|
| 7 | [det] it is often | 6 |
|
| 8 | [det] it [is] often | 6 |
|
