| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh pn] [vb base] been through | 17 |
|
| 2 | [Wh pn] [vb base] be through | 17 |
|
| 3 | who [vb base] be through | 16 |
|
| 4 | [Wh pn] have be through | 13 |
|
