| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [v-ing] [pron] [pron] be | 176 |
|
| 2 | [prep] [verb] [Wh det] [pron] be | 102 |
|
| 3 | [prep] [v-ing] [Wh det] [pron] [be] | 94 |
|
| 4 | [prep] [v-ing] [Wh det] [pron] be | 94 |
|
