| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [prep] [be] | 15773 |
|
| 2 | [prep] [be] [v-ing] | 7764 |
|
| 3 | [be] [prep] [v-ing] | 5741 |
|
| 4 | [be] [be] [v-ing] | 142 |
|
