| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] [be] [v-ing] [prep] | 4042 |
|
| 2 | [Wh det] [be] [v-ing] [prep] | 1687 |
|
| 3 | [Wh det] [vb mod] [be] [prep] | 414 |
|
| 4 | [Wh det] [vb mod] [be] [v-ing] | 190 |
|
