| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [verb] [be] [v-ing] | 434 |
|
| 2 | which [verb] [be] [v-ing] | 377 |
|
| 3 | which it [verb] [be] | 260 |
|
| 4 | which it [be] [v-ing] | 74 |
|
