| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [adv] | 29550 |
|
| 2 | is [adv] [prep] | 8657 |
|
| 3 | it is [prep] | 8469 |
|
| 4 | it [adv] [prep] | 3355 |
|
