| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | what [noun] of changes | 7 |
|
| 2 | [Wh det] [noun] of changes | 7 |
|
| 3 | what [noun] of changes | 7 |
|
| 4 | [pron] [noun sg] of changes | 6 |
|
