| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [verb] back [prep] | 2414 |
|
| 2 | [modal v] [verb] back [prep] | 1446 |
|
| 3 | [adv] [modal v] [verb] [prep] | 1095 |
|
| 4 | [adv] [modal v] [verb] back | 39 |
|
