| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [verb] be | 1445 |
|
| 2 | [prep] [v-ing] be | 1060 |
|
| 3 | [prep] work be | 27 |
|
| 4 | [prep] working [be] | 25 |
|
