| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb -s] be [v-ing] on [prep] | 111 |
|
| 2 | [vb -s] be [v-ing] [adv] at | 21 |
|
| 3 | [verb] be [v-ing] on at | 11 |
|
| 4 | [vb -s] be [verb] on at | 9 |
|
| 5 | [vb -s] [be] [v-ing] on at | 7 |
|
