| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] been change | 37 |
|
| 2 | have [been] change | 37 |
|
| 3 | [verb] [been] changes | 35 |
|
| 4 | [vb base] [been] change | 29 |
|
| 5 | have [been] change | 28 |
|
