| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [adj] changes [prep] | 37 |
|
| 2 | [adv] have been [adj] [prep] | 21 |
|
| 3 | [adv] have been [adj] changes | 5 |
|
| 4 | [adv] been [adj] changes [prep] | 5 |
|
