| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [verb] [prep] [adv] | 3003 |
|
| 2 | [modal v] [verb] back [prep] | 1446 |
|
| 3 | [verb] back [prep] [adv] | 500 |
|
| 4 | [modal v] [verb] back [adv] | 292 |
|
