| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] [pron] [be] [v-ing] [prep] | 2650 |
|
| 2 | [vb base] [pron] [be] [v-ing] [prep] | 1217 |
|
| 3 | [vb base] [Wh det] [pron] [be] [v-ing] | 808 |
|
| 4 | [vb base] [Wh det] [pron] [be] [prep] | 224 |
|
| 5 | [vb base] [Wh det] [be] [v-ing] [prep] | 56 |
|
