| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] [is] [v-ing] [prep] [adj] | 128 |
|
| 2 | [Wh det] [is] [verb] on [adj] | 65 |
|
| 3 | [pron] [is] [v-ing] on [adj] | 49 |
|
| 4 | [Wh det] [be] [v-ing] on [adj] | 31 |
|
