| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [is] [Wh adv] | 764 |
|
| 2 | which is [Wh adv] | 764 |
|
| 3 | which [is] why | 565 |
|
| 4 | which [is] where | 111 |
|
| 5 | which [is] how | 55 |
|
| 6 | which [is] when | 33 |
|
