| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [be] [v-ing] [prep] | 2310 |
|
| 2 | [Wh pn] [be] [v-ing] [prep] | 1758 |
|
| 3 | [Wh pn] [vb past] [be] [v-ing] | 537 |
|
| 4 | [Wh pn] [vb past] [be] [prep] | 373 |
|
| 5 | [Wh pn] [vb past] [v-ing] [prep] | 97 |
|
