| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [verb] [been] [verb] | 6115 |
|
| 2 | [Wh det] [verb] [been] [verb] | 5637 |
|
| 3 | [Wh det] it [verb] [verb] | 815 |
|
| 4 | [Wh det] it [verb] [been] | 240 |
|
