| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] been [v-ing] on for | 109 |
|
| 2 | [Wh det] [verb] been [v-ing] on | 80 |
|
| 3 | [Wh det] [verb] been [v-ing] for | 37 |
|
