| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [v-ing] on a | 808 |
|
| 2 | [be] [v-ing] in on | 111 |
|
| 3 | [v-ing] in on a | 26 |
|
| 4 | [be] [v-ing] in a | 18 |
|
| 5 | [be] in on a | 5 |
|
