| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [n mass] has been [vb pp] on [art] | 11 |
|
| 2 | [n mass] has be [vb pp] on the | 10 |
|
| 3 | £ has be [vb pp] on [art] | 8 |
|
| 4 | [n mass] has be based on [art] | 8 |
|
