| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who [verb] to pay for | 14 |
|
| 2 | [Wh pn] [vb base] to pay for | 8 |
|
| 3 | [Wh pn] [vb past] to pay for | 5 |
|
| 4 | [Wh pn] have to pay for | 5 |
|
