| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [v-ing] for a | 1648 |
|
| 2 | [be] [v-ing] on for | 196 |
|
| 3 | [be] [v-ing] on a | 57 |
|
| 4 | [v-ing] on for a | 30 |
|
| 5 | [be] on for a | 15 |
|
