| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh pn] [vb -s] [prep] | 2860 |
|
| 2 | [vb -s] been [prep] | 2666 |
|
| 3 | [Wh pn] [vb -s] been | 1171 |
|
