| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] be [v-ing] | 148136 |
|
| 2 | be [v-ing] on | 4284 |
|
| 3 | [pron] be on | 971 |
|
| 4 | [pron] [v-ing] on | 342 |
|
