| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh pn] [vb base] be to | 18 |
|
| 2 | [Wh pn] [vb base] been to | 18 |
|
| 3 | who [vb base] be to | 18 |
|
| 4 | [Wh pn] have be to | 14 |
|
