| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it can [adv] [be] | 1833 |
|
| 2 | it can [adv] [be] | 779 |
|
| 3 | [pron] can often [be] | 51 |
|
| 4 | it [modal v] often [be] | 49 |
|
| 5 | it can often [be] | 20 |
|
| 6 | it can often [be] | 20 |
|
