| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [v-ing] on [prep] the | 21 |
|
| 2 | be going on [prep] [art] | 12 |
|
| 3 | be [v-ing] on [prep] a | 10 |
|
| 4 | be [v-ing] on in [art] | 6 |
|
| 5 | be [v-ing] on to [art] | 5 |
|
