| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [v-ing] [prep] | 6060 |
|
| 2 | have been [v-ing] through | 17 |
|
| 3 | have been through [prep] | 16 |
|
| 4 | been [v-ing] through [prep] | 7 |
|
