| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been [adj] changes | 49 |
|
| 2 | been major change | 8 |
|
| 3 | been considerable change | 7 |
|
| 4 | been significant change | 7 |
|
| 5 | been great change | 5 |
|
