| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [vb -s] [prep] | 16161 |
|
| 2 | it is [prep] | 8461 |
|
| 3 | it [vb -s] is | 370 |
|
| 4 | [vb -s] is [prep] | 135 |
|
