| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [adv] | 42938 |
|
| 2 | is [adv] [to-vb] | 3033 |
|
| 3 | it is [to-vb] | 1163 |
|
| 4 | it [adv] [to-vb] | 563 |
|
