| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [subord] it [is] [verb] | 453 |
|
| 2 | [to-vb] [conj] it [is] [verb] | 119 |
|
| 3 | [to-vb] [subord] [pron] [is] [verb] | 103 |
|
| 4 | [to-vb] [subord] it [be] [verb] | 82 |
|
