| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [is] [adv] [vb pp] [verb] | 626 |
|
| 2 | it [is] [adv] [verb] [verb] | 591 |
|
| 3 | it [be] [adv] [vb pp] [verb] | 460 |
|
