| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pers pn] [verb] [adv] been back [prep] | 5 |
|
| 2 | [pron] [verb] [adv] been back [prep] | 5 |
|
| 3 | [verb] [adv] been [verb] back [prep] | 19 |
|
| 4 | [verb] [adv] been [vb pp] back [prep] | 16 |
|
