| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has [adv] been [vb pp] [prep] | 2534 |
|
| 2 | has been [vb pp] back [prep] | 48 |
|
| 3 | has [adv] [vb pp] back [prep] | 23 |
|
| 4 | [adv] been [vb pp] back [prep] | 17 |
|
| 5 | has [adv] been [vb pp] back | 10 |
|
