| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have only be [vb pp] [prep] | 105 |
|
| 2 | have once be [vb pp] [prep] | 41 |
|
| 3 | have only once be [vb pp] | 6 |
|
| 4 | only once be [vb pp] [prep] | 5 |
|
