| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [is] [verb] | 26432 |
|
| 2 | it [is] [vb pp] | 17495 |
|
| 3 | it [be] thought | 770 |
|
| 4 | [pron] [is] thought | 610 |
|
| 5 | it [is] think | 483 |
|
