| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [v-ing] [prep] | 71140 |
|
| 2 | be [v-ing] on | 4284 |
|
| 3 | [v-ing] on [prep] | 3709 |
|
| 4 | be on [prep] | 811 |
|
