| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [vb pp] to [prep] | 28 |
|
| 2 | have [verb] to [prep] | 28 |
|
| 3 | [verb] referred to [prep] | 27 |
|
| 4 | have referred to [prep] | 24 |
|
| 5 | [vb base] referred to [prep] | 9 |
|
| 6 | have referred [prep] [prep] | 7 |
|
| 7 | have refer to [prep] | 7 |
|
| 8 | have referred to [prep] | 7 |
|
