| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [adv] [vb pp] back to [art] | 14 |
|
| 2 | have [adv] [vb pp] back to the | 11 |
|
| 3 | has [adv] [vb pp] back to [art] | 6 |
|
| 4 | had [adv] [vb pp] back to [art] | 5 |
|
