| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who [modal v] [verb] [pron] | 1670 |
|
| 2 | who [modal v] [vb infin] [pron] | 1627 |
|
| 3 | [pron] [modal v] afford [pron] | 201 |
|
| 4 | who [modal v] afford [pron] | 29 |
|
