| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] be [vb pp] | 66333 |
|
| 2 | be [vb pp] back | 2595 |
|
| 3 | [adv] [vb pp] back | 885 |
|
| 4 | [adv] be back | 220 |
|
