| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [vb pp] for this | 55 |
|
| 2 | have be [vb pp] for this | 18 |
|
| 3 | has be [vb pp] for this | 16 |
|
| 4 | had be [vb pp] for this | 14 |
|
| 5 | have be used for this | 6 |
|
