| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has been [vb pp] in a number | 32 |
|
| 2 | has been [vb pp] by a number | 24 |
|
| 3 | has been [vb pp] for a number | 9 |
|
| 4 | has been [vb pp] on a number | 9 |
|
| 5 | has been used [prep] a number | 7 |
|
