| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [v-ing] [prep] many | 21 |
|
| 2 | have been [v-ing] for many | 17 |
|
| 3 | had been [v-ing] [prep] many | 10 |
|
| 4 | has been [v-ing] [prep] many | 6 |
|
