| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | not been the subject of | 5 |
|
| 2 | not been the subject [prep] | 5 |
|
| 3 | not been the subject [prep] | 5 |
|
| 4 | not been the subject [prep] | 5 |
|
| 5 | not been the subject of | 5 |
|
