| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been [vb pp] several times | 56 |
|
| 2 | been [vb pp] many times | 48 |
|
| 3 | been mentioned [det] times | 7 |
|
| 4 | been used [det] times | 5 |
|
| 5 | been raised [det] times | 5 |
|
