| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | unless it is [verb] by | 18 |
|
| 2 | unless it is [verb] by | 18 |
|
| 3 | unless it is [vb pp] by | 18 |
|
| 4 | unless it is accompany by | 5 |
|
| 5 | unless it is accompanied by | 5 |
|
