| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [verb] [prep] | 563549 |
|
| 2 | be [v-ing] [prep] | 79523 |
|
| 3 | be [v-ing] [verb] | 32862 |
|
| 4 | [v-ing] [verb] [prep] | 12244 |
|
