| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | what [adj] difference [modal v] | 5 |
|
| 2 | what [adj] difference [modal v] | 5 |
|
| 3 | what difference [modal v] [pers pn] | 12 |
|
| 4 | what difference [modal v] it | 12 |
|
| 5 | what difference [modal v] it | 12 |
|
| 6 | what difference [modal v] [pron] | 12 |
|
| 7 | what difference [modal v] [adj] | 5 |
|
| 8 | what difference [modal v] [det] | 5 |
|
