| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which they have [verb] to | 20 |
|
| 2 | which they have [vb pp] to | 16 |
|
| 3 | which they had [verb] to | 10 |
|
| 4 | which they have [verb] to | 9 |
|
