| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] [adv] [verb] to | 5660 |
|
| 2 | [vb mod] [adv] [verb] to | 3291 |
|
| 3 | [vb mod] often [verb] [prep] | 166 |
|
| 4 | [vb mod] often [verb] to | 46 |
|
| 5 | [modal v] often [verb] to | 46 |
|
