| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] [be] [v-ing] [prep] | 1572 |
|
| 2 | has [be] [v-ing] [prep] | 1064 |
|
| 3 | [Wh det] has [be] [v-ing] | 228 |
|
| 4 | [Wh det] has [be] [prep] | 89 |
|
