| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] once been part | 6 |
|
| 2 | have once been part | 6 |
|
| 3 | once been part of | 6 |
|
| 4 | once been part of | 6 |
|
| 5 | once been part [prep] | 6 |
|
| 6 | once been part [prep] | 6 |
|
