| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [vb mod] to be [art] | 21 |
|
| 2 | which used to be [art] | 20 |
|
| 3 | which [vb mod] to be a | 10 |
|
| 4 | which [vb mod] to be the | 9 |
|
