| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | i have been [v-ing] [prep] | 817 |
|
| 2 | have been [v-ing] on [prep] | 221 |
|
| 3 | i have been [v-ing] on | 17 |
|
| 4 | i have been on [prep] | 8 |
|
