| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [vb past] [verb] [art] | 1180 |
|
| 2 | [pron] [vb past] [v-ing] [art] | 800 |
|
| 3 | which [verb] [v-ing] [art] | 128 |
|
| 4 | [Wh det] [vb past] [v-ing] [art] | 51 |
|
| 5 | which [vb past] [v-ing] [art] | 50 |
|
