| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [been] [v-ing] on [det] | 53 |
|
| 2 | have [been] [v-ing] [det] | 44 |
|
| 3 | have [been] [v-ing] on | 35 |
|
| 4 | have [been] on [det] | 15 |
|
