| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | 've been [v-ing] [prep] | 879 |
|
| 2 | they 've been [v-ing] | 291 |
|
| 3 | they 've been [prep] | 98 |
|
| 4 | they been [v-ing] [prep] | 8 |
|
