| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | 've [adv] [vb pp] [to-vb] back | 9 |
|
| 2 | 've [adv] got [to-vb] back | 8 |
|
| 3 | 've [adv] [vb pp] to go back | 7 |
|
