| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] [verb] to [prep] | 156 |
|
| 2 | [vb mod] refer [prep] [prep] | 26 |
|
| 3 | [vb mod] refer to [prep] | 26 |
|
| 4 | [vb mod] refer [prep] [prep] | 26 |
|
| 5 | [vb mod] refer to [prep] | 26 |
|
| 6 | [modal v] refer to [prep] | 26 |
|
