| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it be [prep] | 23929 |
|
| 2 | be [prep] [pos pn] | 10428 |
|
| 3 | it be [pos pn] | 5610 |
|
| 4 | it [prep] [pos pn] | 4652 |
|
