| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [det] [Wh pn] [be] [v-ing] [prep] | 70 |
|
| 2 | [verb] [det] [be] [v-ing] [prep] | 67 |
|
| 3 | [verb] [Wh pn] [be] [v-ing] [prep] | 51 |
|
| 4 | [verb] [det] [Wh pn] [be] [v-ing] | 35 |
|
| 5 | [verb] [det] [Wh pn] [be] [prep] | 23 |
|
