| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which is [verb] [adv] [subord] | 12 |
|
| 2 | which [is] [verb] [adv] [subord] | 8 |
|
| 3 | which [is] [vb pp] [adv] [subord] | 7 |
|
| 4 | which [is] [v-ing] [adv] [subord] | 5 |
|
