| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] been a [adj] | 4366 |
|
| 2 | [verb] been undergoing [adj] | 8 |
|
| 3 | [verb] been undergoing a | 8 |
|
| 4 | been undergoing a [adj] | 7 |
|
