| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] [prep] [v-ing] | 3232 |
|
| 2 | which [is] [prep] | 1608 |
|
| 3 | which [is] [v-ing] | 1159 |
|
| 4 | which [prep] [v-ing] | 38 |
|
