| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who could [verb] | 1259 |
|
| 2 | who could [vb infin] | 1251 |
|
| 3 | [pron] could afford | 332 |
|
| 4 | who [modal v] afford | 113 |
|
| 5 | who could afford | 50 |
|
